Why doing someone a favor makes you like them more
In short: It seems counterintuitive: we usually like people who do things for us. Yet, psychology suggests the opposite is often true. When you perform a favor for someone you initially dislike, your brain works to resolve the internal conflict, often resulting in a surprising shift toward genuine affection.
The phenomenon is rooted in cognitive dissonance, a psychological state where our actions conflict with our beliefs. If you perform a helpful act for someone you dislike, your brain experiences tension between the behavior (being kind) and the attitude (disliking them). To resolve this, the mind often adjusts the attitude to match the behavior, leading you to conclude that you must actually like the person more than you thought.
Benjamin Franklin famously illustrated this in his autobiography. To win over a hostile rival legislator in the 18th century, Franklin didn't offer a gift; he asked to borrow a scarce book. After returning it with a note of gratitude, the rival became a lifelong friend. This 'old maxim' suggests that being the recipient of a favor makes one more ready to help again, but the psychological mechanism is about the helper's internal rationalization.
Experimental evidence supports this. In a 1969 study by Jon Jecker and David Landy, students who returned money directly to a researcher liked him more than those who returned it to a secretary. In 1971, Schopler and Compere found that people rated others as less attractive after being rude to them, suggesting our own conduct shapes our perception of others. Some theorists, like Yu Niiya, suggest this also involves perceiving a request as a deliberate attempt to ignite friendly relations.
This effect has practical applications in sales and mentorship. By asking a client for a small favor—like sharing their expertise—you signal admiration, which can build rapport. Conversely, it warns against proactive over-reciprocation in mentor-protege relationships, where unsolicited help can create an awkward role reversal. It even extends to animal behavior, where the way we treat pets can influence our own emotional bond with them.
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- Summary by Intellect · source: Benjamin Franklin effect
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