Insufficiently complimentary?: Underestimating the positive impact of compliments creates a barrier to expressing them.

Compliments increase the well-being of both expressers and recipients, yet people report in a series of surveys giving fewer compliments than they should give, or would like to give.Nine experiments suggest that a reluctance to express genuine compliments partly stems from underestimating the positive impact that compliments will have on recipients.Participants wrote genuine compliments and then predicted how happy and awkward those compliments would make recipients feel.Expressers consistently underestimated how positive recipients would feel but overestimated how awkward recipients would feel (Experiments 1-3, S4).These miscalibrated expectations are driven partly by perspective gaps in which expressers underestimate how competent-and to a lesser extent how warm-their compliments will be perceived by recipients (Experiments 1-3).Because people's interest in expressing compliments is partly driven by their expectations of the recipient's reaction, undervaluing compliments creates a barrier to expressing them (Supplemental Experiments S2, S3, S4).As a result, directing people to focus on the warmth conveyed by their compliments (Experiment 4) increased interest in expressing them.We believe these findings may reflect a more general tendency for people to underestimate the positive impact of prosocial actions on others, leading people to be less prosocial than would be optimal for both their own and others' well-being.