“…Coevolution of various species demonstrates how mimicry of color, movement, and shape provides powerful protection against predators, helps in luring prey (3), and enables parasites to attain cooperative behavior from their hosts (4). Among humans, similarity induces interpersonal attraction (5), affiliation (6), rapport (7), generosity (8), and cooperation (9)(10)(11). Imitation provides the means for learning and coping with social and strategic structures (12)(13)(14)(15)(16)(17), whereas homophilous imitation, the imitation of others who are similar to one's self, generates stable and homogeneous populations (18).…”