This study had two purposes: first, we investigated whether the effect of embarrassed expressions on observer motive varied as a result of the situation that caused the embarrassment, and second, we investigated whether observer motive differed by type of embarrassed facial expression. Participants read scenarios in which a friend was either positively or negatively evaluated by a third person and the friend expressed one of four types of facial expression: three embarrassed and one neutral. Participants were then asked questions that explored their motive to act on behalf of themselves, on behalf of their friend, and to attempt to recover the disrupted social interaction. In order to examine whether the effect of embarrassed expression on observer motive varied according to the situation that resulted in the embarrassment and whether observer motive differed by type of facial expression, two-way ANOVAs, simple main effect analysis, and multiple comparisons were conducted Results revealed that the interactions of situation and facial expression type were significant on all observer motive. Moreover, there were significant differences in each observer motive between types of facial expression when the friend was positively evaluated; however, no such differences were found when the friend was evaluated negatively. These findings suggest that the effect of embarrassed facial expressions on observer motive is differed by the situation that caused the embarrassment, and that the effect of facial expressions on observer motive exist in only under conditions of positive evaluation.