An asymmetrical, sneer-like smile indicating disdain or superiority. 2. Physical and Mental Health Benefits
Used to show friendliness or comply with social norms, this smile moves the mouth but typically does not reach the eyes. 0Smile
Smiling triggers chemical reactions that boost your well-being. What's the science behind a smile? - British Council 0Smile
A closed-mouth smile used to indicate submission or discomfort. 0Smile