smile 
(smīl)
(smīl)n.
A facial expression characterized by an upward curving of the corners of the mouth and indicating pleasure, amusement, or derision.
v. smiled, smil·ing, smiles
v.intr.
1. To have or form a smile.
2.
a. To look with favor or approval: Fortune smiled on our efforts.
b. To express cheerful acceptance or equanimity: We smiled at the bad weather and kept going.
v.tr.
To express with a smile: Grandmother smiled her consent.
[From Middle English smilen, to smile, probably of Scandinavian origin; see smei- in the Appendix of Indo-European roots.]
smiler n.
smiling·ly adv.