Written by the Fiveable Content Team โข Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated August 2025
Definition
Smiling refers to the act of curving your lips upward, often as an expression of happiness or amusement. It is a facial expression that involves the movement of various facial muscles.