To make a facial expression that shows happiness or friendliness by curving the corners of the mouth upward.

A facial expression showing happiness or friendliness, typically involving the upward curving of the corners of the mouth.

A sign of approval or encouragement, often expressed through a facial expression.

To express amusement or satisfaction in a subtle way, often without laughter.

A gesture or action that indicates happiness or friendliness, not necessarily involving the face.

To show a particular emotion or attitude through a smile, often in a specific context.