This study assessed the effect of bottom‐up visual cues—the cues of being watched—from anthropomorphized (face‐like) everyday objects on religious people's prosocial behavior. As religious people are more likely than less‐religious people to perceive faces in everyday objects and as perception of face‐like objects promotes prosociality, it was expected that religious people would become more prosocial when they perceived face‐like objects. To test the hypothesis, the study replicated a past finding in a Japanese sample in which religious people tended to perceive a face in everyday objects. Next, results showed that the decision to donate in religious people (compared to less‐religious people) was increased when a face‐like object was displayed with charitable appeals. This effect was not observed with a non‐face‐like object. The current study indicates that interaction with the surrounding environment plays an important role in motivating prosocial behavior among religious people.