Preeti is an Indian Desi Girl and her Smiling is so cute and innocent like baby, as you can also see in above Preeti photo. She want to tell us about smiling, She says, A smile is a facial expression formed by flexing the muscles near both ends of the mouth. The smile can also be found around the eyes (See 'Duchenne smile' below). Among humans, it is customarily an expression denoting pleasure, happiness, or amusement, but can also be an involuntary expression of anxiety, in which case it is known as a grimace. Cross-cultural studies have shown that smiling is a means of communicating emotions throughout the world. Its is said, A smile is a curve that sets everything straight. A smile confuses an approaching frown. Have you ever noticed how easily puppies make human friends? Yet all they do is wag their tails and fall over.
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