Smiles are often classified as "real," which are automatic and elicited by positive emotions, and "fake," which are formed purposefully, usually as a polite gesture. Though these types of smiles are ...

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 ...

You’re scanning through a website showing photos of prize winners, and of course all of them are smiling. However, as you look through the array of apparently happy people, some strike you as ...