0smile -

Used to show friendliness or comply with social norms, this smile moves the mouth but typically does not reach the eyes.

A closed-mouth smile used to indicate submission or discomfort. 0Smile

A genuine smile that is being repressed to conceal extreme excitement or emotions. Used to show friendliness or comply with social

A smile is a universal, instinctual human expression used to show joy, connection, friendliness, or even comfort in difficult situations. While often deemed a simple gesture, it is a complex, 43-muscle action that serves as a powerful nonverbal communication tool. it is a complex

Researchers have identified up to 19 different types of smiles, though they generally fall into three categories: reward, affiliation, and dominance.