Smiles are one of the most universal forms of communication, and yet, they are far more complex than they appear. While a smile often signals happiness or friendliness, different types of smiles can ...

Our facial muscles have evolved to become a remarkable channel of communication. We use our faces to convey a wide range of emotions and attitudes. Although we typically associate smiles with ...

A smile is just a smile, right? Not so, according to researchers. Psychologists from the U.S. and the U.K. have figured out how to identify different types of smiles to better understand the popular ...