smiling

A smile is a facial expression 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. It is distinct from a similar but usually involuntary expression of anxiety known as a grimace. Although cross-cultural studies have shown that smiling is a means of communication throughout the world, there are large differences among different cultures, religions, and societies, with some using smiles to convey confusion or embarrassment.

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    Smiling can be difficult

    Smiling can be difficult. It involves rearranging your basic frowndations.
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    Trivia Keep Smiling

    In Milan, It's a legal requirement to smile at all times If you're feeling blue, then you better stay away from Milan. In the Italian city, it's a legal requirement for people to smile at all times. The only exception to this seemingly strict, happiness-enforcing rule is during funerals or...
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