Prior research suggests that group membership impacts behavioral and self-reported responses to others’ facial expressions of emotion. In this paper, we examine how the mere labelling of a face as an ingroup or outgroup member affects facial mimicry (Study 1) and judgments of genuineness (Study 2). In addition, we test whether the effects of group membership on facial mimicry and perceived genuineness are moderated by the presence of tears (Study 1) and the motivation to cooperate (Study 2). Results from both studies revealed group-specific biases in facial mimicry and judgments of genuineness. However, introducing cooperative goals abolished differences in judgments of genuineness of facial expressions displayed by ingroup and outgroup members. Together, the findings provide insights into how intergroup biases in emotion perception operate and how they can be reduced by introducing cooperative goals
