Social proof
DefinitionCreative Strategy
Social proof
Evidence that other people already chose you, used as persuasion: reviews, ratings, customer counts, familiar logos, creator endorsements. It works because imitation is a decision shortcut - when uncertain, people do what others like them did.
Evidence from the library
84%84% of purchasers end up choosing a brand they were already biased toward before they started shopping.Stat9-27% preference shareUnknown brands can take preference from category leaders on behavioural principles aloneStatPeople come to believe in a brand through participation, not through being told a storyPrinciple68% / 60%Two thirds follow creators for authenticity, and most feel a personal connectionStatIn agentic commerce, trust signals such as reviews, complaints data, regulator ratings, and customer service scores function as ranking signals that shape which provider an agent recommends.Principle
Related marketing laws
Source
Marketing Definitions
Robert Cialdini, Influence (1984)
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