Duck face is a trend of photographic pose, which is well known on profile pictures in social networks. Lips are pressed together as in a pout and often with simultaneously sucked cheeks. The pose is most often seen as an attempt to appear alluring, but also as a self-deprecating, ironic gesture making fun of the pose. It may be associated with sympathy, attractiveness, friendliness or stupidity. In animal communication studies of capuchin monkeys, the "duck face" term has been used synonymously with "protruded lip face", which the females exhibit in the proceptive phase before mating.