Emotional expression is a foundational component of human social communication, enabling individuals to interpret, predict and respond to the intentions and internal states of others. Facial movement ...

Humans not only recognize emotions on the faces of monkeys and apes but also unconsciously mimic those expressions.

A psychology professor reveals facial expressions as tools for social influence. Maybe it was a sweet-as-pie, pretty-please smile meant to talk a friend into sharing her dessert, or a serious stink ...