Engineer word-of-mouth and virality using the STEPPS framework (Social Currency, Triggers, Emotion, Public, Practical Value, Stories). Use when the user mentions "go viral", "word of mouth", "shareable content", "social currency", or "why people share". Covers environmental triggers and high-arousal emotional content. For sticky messaging, see made-to-stick. For persuasion tactics, see influence-psychology. Trigger with 'contagious'.
Engineer word-of-mouth and virality using the STEPPS framework (Social Currency, Triggers, Emotion, Public, Practical Value, Stories). Use when the user mentions "go viral", "word of mouth", "shareable content", "social currency", or "why people share". Covers environmental triggers and high-arousal emotional content. For sticky messaging, see made-to-stick. For persuasion tactics, see influence-psychology. Trigger with 'contagious'.
allowed-tools
Read, Glob, Grep
license
MIT
author
Wondelai <hello@wondelai.com>
version
1.0.1
compatible-with
claude-code, codex, openclaw
tags
["business","contagious"]
Word-of-Mouth & Virality Framework
A framework for engineering word-of-mouth and making products, ideas, and content contagious. Based on Jonah Berger's research into why certain things catch on while others languish in obscurity — and how to systematically tip the odds in your favor.
Core Principle
Virality is not born — it is engineered. Products don't go viral by luck or by simply being great. They spread because they were designed — consciously or unconsciously — to be shared.
The foundation: Contrary to popular belief, only 7% of word-of-mouth happens online. The remaining 93% happens offline, in everyday conversations. This means virality isn't just about social media — it's about understanding the psychology of why people talk about and share certain things. Sharing follows predictable psychological patterns, and these patterns can be engineered into any product, idea, or piece of content using the STEPPS framework.
Scoring
Goal: 10/10. When reviewing or creating products, campaigns, content, or features for shareability, rate 0-10 based on adherence to the STEPPS principles below. A 10/10 means the offering activates all six STEPPS drivers; lower scores indicate untapped viral potential. Always provide the current score and specific improvements needed to reach 10/10.
STEPPS Overview
Six principles that make things contagious:
set -euo pipefail
S - Social Currency → Does sharing it make people look good?
T - Triggers → Is there an environmental cue that reminds people of it?
E - Emotion → Does it evoke high-arousal feelings?
P - Public → Is it visible when people use or consume it?
P - Practical Value → Is it genuinely useful information people want to pass along?
S - Stories → Is it wrapped in a narrative people want to tell?
Not a checklist — a multiplier. Each principle independently increases the likelihood of sharing. The most contagious ideas activate multiple STEPPS simultaneously. But even activating one or two well can dramatically increase word-of-mouth.
Principle
Core Question
Sharing Driver
Social Currency
Does it make people look good to share?
Self-enhancement
Triggers
What in the environment reminds people of it?
Top-of-mind accessibility
Emotion
Does it fire up high-arousal feelings?
Physiological arousal
Public
Can others see people using/engaging with it?
Observational learning
Practical Value
Is it useful enough to pass along?
Altruism and helpfulness
Stories
Is the brand embedded in a narrative?
Entertainment and identity
The STEPPS Framework
1. Social Currency
Core concept: People share things that make them look good — smart, cool, in-the-know. If your product or idea makes people feel like insiders, they'll spread it to boost their own image.
Why it works: We use brands and information as social signals. Sharing remarkable facts, exclusive access, or high-status products is a form of self-enhancement. People don't just share what they think — they share what makes them look good for thinking it.
Key insights:
Remarkability — things that are surprising, novel, or extreme get shared because they make the sharer seem interesting. "Did you know...?" is one of the most powerful sharing triggers
Game mechanics — leaderboards, badges, status tiers, and achievement systems create visible markers of accomplishment that people want to display and talk about
Exclusivity and scarcity — secret menus, invite-only access, members-only content — making people feel like insiders gives them social currency when they share "insider knowledge" with their circle
Inner remarkability — even mundane products can find their remarkable angle. The key is framing, not the product itself
Product applications:
Context
Application
Example
SaaS onboarding
Achievement milestones users can share
"I just hit 1,000 tasks completed on Todoist"
E-commerce
Exclusive early access for loyal customers
Amazon Prime early deals
Content platform
Insider statistics or year-in-review
Spotify Wrapped
B2B product
Industry benchmarking data users want to cite
HubSpot State of Marketing report
Mobile app
Shareable accomplishment cards
Duolingo streak badges
Community
Tiered status with visible badges
Stack Overflow reputation system
Copy patterns:
"Most people don't know that..."
"You're one of the first to try..."
"Only available to [exclusive group]..."
"Here's what [X] insiders know..."
"You've unlocked [achievement]..."
"Share your [impressive metric]..."
Ethical boundary: Social currency should make people genuinely feel good, not manipulate through false scarcity or manufactured exclusivity that breeds toxicity. Create real insider value, not artificial gatekeeping.
Core concept: Top-of-mind means tip-of-tongue. Environmental cues — sights, sounds, smells, times of day, routines — can trigger people to think about and talk about your product. The more frequently people encounter your trigger, the more they'll talk about you.
Why it works: Most word-of-mouth is not driven by excitement about the product itself but by whatever happens to be top-of-mind at the moment of conversation. If your product is linked to a frequent environmental cue, it gets mentioned more often — not because it's more exciting, but because it's more accessible in memory.
Key insights:
Frequency beats strength — a trigger encountered daily (like coffee) is more valuable than a powerful but rare trigger (like a holiday). Kit Kat linked itself to coffee breaks, which happen multiple times per day
Habitat matters — where and when do people encounter environments related to your product? Those are your trigger opportunities
Competitive triggers — you can link competitor moments to your own brand. When people think of [competitor's context], they think of you instead
Ongoing vs. temporary — triggers that persist in the environment (a desk item, a daily routine) generate sustained word-of-mouth, while event-based triggers create spikes
Context linking — pair your product with an existing, frequent behavior or environment
Product applications:
Context
Application
Example
Food/Beverage
Link to daily routine or habit
Kit Kat + coffee break
Productivity tool
Tie to a recurring workflow moment
"Every Monday standup..."
Health app
Connect to a physiological cue
"When you feel stressed..."
Financial product
Link to payday or spending moment
"Every time you get paid..."
Content/Media
Tie to a day of the week
"Taco Tuesday" driving taco talk
E-commerce
Connect to seasonal or weather triggers
"When it rains..." campaigns
Copy patterns:
"Every time you [frequent activity], think of..."
"Next time you [daily habit]..."
"When you see [environmental cue]..."
"It's [day/time] — time for..."
"Whenever you [routine behavior]..."
Ethical boundary: Triggers should create genuine, helpful associations. Hijacking sensitive contexts (grief, health scares) as triggers is manipulative and will backfire.
Core concept: When we care, we share. High-arousal emotions — both positive (awe, excitement, amusement) and negative (anger, anxiety) — drive sharing. Low-arousal emotions (sadness, contentment) suppress it.
Why it works: Physiological arousal — the racing heart, the tightened muscles, the activated state — creates a need to share. It's not about positivity vs. negativity; it's about activation vs. deactivation. Content that fires people up gets shared; content that brings people down gets ignored.
Awe is the most powerful sharing emotion — content that makes people feel small in the face of something vast, beautiful, or surprising spreads the furthest
Emotional framing — the same information can be framed to evoke different arousal levels. Facts inform; emotional framing motivates sharing
Product applications:
Context
Application
Example
Launch content
Engineer awe through unexpected scale or beauty
Apple keynote reveals
Social campaigns
Tap righteous anger at an injustice
Dove "Real Beauty" challenging beauty standards
Product demos
Create amusement through unexpected use cases
Blendtec "Will It Blend?"
User milestones
Spark excitement at personal achievement
Fitness apps celebrating PRs
Brand storytelling
Inspire through human triumph narratives
Nike "Just Do It" athlete stories
Feature announcements
Generate curiosity and anticipation
"Something big is coming..." teasers
Copy patterns:
"This will change how you think about..."
"I can't believe [surprising fact]..."
"Watch what happens when..."
"This is why we fight for..."
"You won't believe what [person] did..."
"[Powerful statistic] — here's what we're doing about it"
Ethical boundary: Anger and outrage are high-arousal and highly shareable, but engineering outrage for clicks corrodes trust. Use high-arousal negative emotion sparingly and only when the underlying cause genuinely warrants it.
Core concept: Built to show, built to grow. If people can see others using your product, they're more likely to adopt it themselves. Make the private public — design for observability.
Why it works: People imitate what they can see. If your product usage is invisible, you lose the most powerful adoption channel: social proof through observation. The phrase "monkey see, monkey do" exists because observational learning is one of the deepest human instincts.
Key insights:
Behavioral residue — design products that leave visible traces after use. A bumper sticker outlasts the rally. A Livestrong wristband is worn long after the donation
Self-advertising products — every Hotmail email included "Get your free email at Hotmail" in the signature. The product advertised itself through use
Observable consumption — Apple deliberately designed the MacBook logo to face outward (toward observers) rather than toward the user. Every open laptop became a billboard
Private behaviors stay private — if no one can see you using the product, you can't benefit from social proof. Find ways to make invisible usage visible
Public = imitable — people can only copy what they can observe. Making your product publicly visible makes it easier for others to adopt
Product applications:
Context
Application
Example
Email/Messaging
Branded signatures or footers
"Sent from my iPhone"
Physical products
Visible branding during use
Apple logo on laptops, Beats headphones
Digital products
Shareable output with branding
Canva designs with watermark, Spotify "Now Playing"
Communities
Wearable or displayable membership signals
Livestrong wristbands, conference badges
SaaS tools
Public-facing outputs that credit the tool
"Powered by [tool]" on websites
Content platforms
Share cards with platform branding
Twitter/X quote cards, Instagram story frames
Copy patterns:
"Show the world you [achievement/identity]..."
"Let others know you..."
"Wear your [accomplishment]..."
"Share your [output] — powered by [brand]..."
"Join [number] others who..."
Ethical boundary: Public visibility should empower users, not shame them. Never make private information (failures, health data, financial struggles) involuntarily public. The user should always control what is visible.
Core concept: People share useful information to help others. News you can use spreads — especially when it's packaged in a way that's easy to pass along and clearly valuable.
Why it works: Sharing practical value is driven by altruism — people genuinely want to help their friends and family. If your content or product saves people time, money, or effort, they'll share it as a favor to their network.
Key insights:
Prospect Theory — people evaluate deals relative to a reference point, not in absolute terms. A $10 discount on a $20 item feels better than a $10 discount on a $1,000 item, even though the savings are identical
Rule of 100 — for products under $100, use percentage discounts (50% off a $30 item sounds better than $15 off). For products over $100, use dollar amounts ($200 off sounds better than 10% off a $2,000 item)
Diminishing sensitivity — the difference between $5 and $10 feels bigger than the difference between $495 and $500. Frame savings relative to small reference points
Knowledge packaging — useful information needs to be packaged for easy sharing. Lists, how-tos, infographics, and tip collections are inherently more shareable than long-form essays
Narrow audience = wider sharing — counterintuitively, content targeting a specific niche gets shared more because people forward it to "the person who needs this"
Product applications:
Context
Application
Example
Pricing/Promotions
Frame deals using Rule of 100
"Save 40%" (under $100) vs. "Save $500" (over $100)
Content marketing
Package expertise as numbered lists
"7 ways to reduce your electricity bill"
Product features
Build in shareable utility outputs
Calorie tracker generating weekly health summaries
Email campaigns
Include "forward-worthy" tips
Useful tips the recipient would forward to a friend
B2B content
Create industry benchmarks and tools
Free ROI calculator with shareable results
Customer success
Package how-to guides for common tasks
Quick-start guides users share with teammates
Copy patterns:
"Save [amount] with this one trick..."
"The [number]-step guide to..."
"Here's something you'll want to send to [specific person]..."
"[Number] things I wish I knew about..."
"Quick tip: [immediately useful advice]..."
"Share this with someone who needs to hear it"
Ethical boundary: Practical value must be genuine. Fake savings (inflated "original" prices), misleading tips, or clickbait "life hacks" that don't actually work will destroy trust faster than they generate shares.
Core concept: People don't just share information — they tell stories. The best way to spread your idea is to embed it inside a narrative so engaging that people retell it, and your brand comes along for the ride. This is the Trojan Horse approach.
Why it works: Stories are how humans naturally process and transmit information. We think in narratives, not bullet points. A well-crafted story carries your brand message inside it like a Trojan Horse — the listener absorbs the message while being entertained by the story.
Key insights:
The Trojan Horse test — can someone retell the story without mentioning your brand? If yes, the story fails. Your brand must be so integral to the narrative that removing it makes the story collapse
Stories carry morals — people extract lessons from narratives. The lesson should naturally lead to your value proposition
Narrative transportation — when people are absorbed in a story, their critical defenses drop. They accept the embedded message more readily than a direct pitch
Retellability — the story must be simple enough to retell in a conversation. If it requires a 10-minute setup, it won't spread
Valuable virality — the story must not just be shareable but must carry the brand message. A hilarious ad that people can't remember the brand of is a failure
Product applications:
Context
Application
Example
Brand marketing
Create a narrative inseparable from the product
Blendtec "Will It Blend?" (can't retell without mentioning Blendtec)
Product launch
Build origin story around a customer problem
"We built this because our founder couldn't find..."
Content marketing
Wrap data and insights inside human stories
Customer success stories as narratives, not testimonials
PR/Earned media
Create stunts that are inherently story-worthy
Barclay Prime's $100 cheesesteak
User onboarding
Frame the user as the hero of a journey
"Your story starts here..."
Customer advocacy
Give customers a story to tell about their experience
"You won't believe what happened when I called support..."
Copy patterns:
"Here's the story of how..."
"It all started when [founder/customer] realized..."
"Nobody believed [audacious claim] — until..."
"What would you do if [relatable dilemma]?"
"The [person/company] who [did something remarkable]..."
Ethical boundary: Stories must be true or clearly fictional. Fabricating testimonials, inventing origin stories, or creating misleading narratives will eventually be exposed, destroying the brand's credibility and making future word-of-mouth toxic.
Jonah Berger is a marketing professor at the Wharton School at the University of Pennsylvania. His research focuses on social influence, word-of-mouth, and why products, ideas, and behaviors catch on. He has published dozens of articles in top-tier academic journals and his work has been featured in the New York Times, Wall Street Journal, and Harvard Business Review. "Contagious" distills his years of research into a practical framework for understanding and engineering virality. He has also authored "Invisible Influence" (on how hidden forces shape behavior) and "The Catalyst" (on how to change minds), and consults with companies ranging from startups to Fortune 500 firms on how to make their products and ideas spread.
Overview
Engineer word-of-mouth and virality using the STEPPS framework (Social Currency, Triggers, Emotion, Public, Practical Value, Stories).
Prerequisites
Access to the Go environment or API
Required CLI tools installed and authenticated
Familiarity with Go concepts and terminology
Instructions
Assess the current state of the Go configuration
Identify the specific requirements and constraints
Apply the recommended patterns from this skill
Validate the changes against expected behavior
Document the configuration for team reference
Output
Configuration files or code changes applied to the project
