English, asked by harleen252005, 4 days ago

write to your aunt envite house during summer vacatoin​

Answers

Answered by Anonymous
5

A smile is formed primarily by flexing the muscles at the sides of the mouth. Some smiles include a contraction of the muscles at the corner of the eyes, an action known as a Duchenne smile. Among humans, a smile expresses delight, sociability, happiness, joy or amusement

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