Technique · Influence
Voluntary testimony from current users
Invite current users, all of them and not only the happy ones, to describe how they use the product: a review, a short story, a "share your setup" thread. Describing what they like in their own words deepens their commitment and supplies real proof for others.
Plain label: ask every user how they use itAlso known as: testimonials, user spotlight, review ask, share your setup
How it works
People who state publicly what they like about something come to believe it more, because their words become part of how they see themselves; contests that asked consumers to explain why they liked a product filled company files with written praise. The proof is credible to others only when it is voluntary and unfiltered, and asking only satisfied users skews it in ways reviewers and platforms penalize.
In the book. Written, public statements of liking for a product commit the writer to it (Ch.3, pp.60-62), and guests at product parties described their own uses aloud (Ch.5, p.126). INF-T-CC-18 (Influence Ch.5, p.126) INF-T-CC-17 (Influence Ch.3, p.60)
In a product [S]. Ask every user for their story or review, and publish real answers, critics included.
Evidence Evidence grade C. Limited evidence: few or small studies.. Self-persuasion through stated praise is supported; product-level effects are mostly company-reported.
Evidence warning
Review gating (asking only satisfied users) breaks platform policies and US FTC rules; ask everyone and disclose any incentive.
What the research says
Guests at home-selling parties were asked to describe aloud how they used products they already owned, a public statement the book links to later buying.
Influence Ch.5, p.126
Consumer-goods companies ran contests asking people to write why they liked a product, and entrants came to believe what they had written.
Influence Ch.3, pp.60-62
How to build it
- Web
- After a milestone, ask every active user "How are you using it?" in a short form, and feature a rotating set of real answers, critical ones included.
- E-commerce
- Send a review request to every buyer after the typical use period, not only to those who rated the delivery highly.
- B2B
- Invite customers to share their setup in a community thread or a short case study, and disclose any credit or prize next to the story.
What can go wrong
- Asking only promoters (review gating).
- Requiring praise to unlock a reward.
- Editing critical stories out of the public wall.
Pairs well with
- Pairs with in-t-lk-21: ask right after a success.
- Pairs with in-t-sp-24: show what users wrote, with the full distribution.
In practice
Where it shows up
Limits
What we don’t claim
- Left Brain and Right Brain are a metaphor for extrinsic and intrinsic motivation, not a claim about neuroscience.Actionable Gamification Ch.13, pp.342-343
Sources
Influence · Robert Cialdini
Ch.5, p.126 · Ch.3, p.60
Source IDs: INF-T-CC-18INF-T-CC-17
Book content is paraphrased, never quoted at length. Last verified October 24, 2026.
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