to assume a facial expression indicating pleasure, favor, or amusement, but sometimes derision or scorn, characterized by an upturning of the corners of the mouth.

to regard with favor

Luck smiled on us that night.

to have a pleasant or agreeable appearance or aspect, as natural scenes, objects, etc.

The landscape smiled in the sunlight.

to assume or give (a smile, esp. of a given kind)

She smiled a warm and friendly smile.

to express by a smile

to smile approval.

to bring, put, drive, etc., by or as by smiling

to smile one's tears away.

the act or an instance of smiling; a smiling expression of the face.

favor or kindly regard

fortune's smile.

a pleasant or agreeable appearance, look, or aspect. ?

smile at,

to regard with pleasure or amusement, as with a smile.

to regard with mild derision

to smile at someone's affectations.