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Here is a comprehensive guide to understanding, practicing, and improving your smile. 1. The Science and Types of Smiles

A genuine smile that is being repressed to conceal extreme excitement or emotions. 0Smile

A closed-mouth smile used to indicate submission or discomfort. Here is a comprehensive guide to understanding, practicing,

Used to show friendliness or comply with social norms, this smile moves the mouth but typically does not reach the eyes. 0Smile