Smile
A smile is a facial expression formed by flexing the muscles near both ends of the mouth and by flexing muscles throughout the mouth.[1] Some smiles include contraction of the muscles at the corner of the eyes (see 'Duchenne Smiling' below). Among humans, it is an expression denoting pleasure, sociability, happiness, or amusement. This is not to be confused with a similar but usually involuntary expression of anxiety known as a grimace. Smiling is something that is understood by everyone despite culture, race, or religion; it is internationally known. Cross-cultural studies have shown that smiling is a means of communication throughout the world.[2] But there are large differences between different cultures. A smile can also be spontaneous or artificial.
While smiling is perceived as a positive emotion most of the time, there are many cultures that perceive smiling as a negative expression and consider it unwelcoming. Too much smiling can be viewed as a sign of shallowness or dishonesty.[9] Japanese people may smile when they are confused or angry. In other parts of Asia, people may smile when they are embarrassed. Some people may smile at others to indicate a friendly greeting. A smile may be reserved for close friends and family members. Many people in the former Soviet Union area consider smiling at strangers in public to be unusual and even suspicious behavior. Yet many Americans smile freely at strangers in public places (although this is less common in big cities). Some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don't smile enough. In Southeast Asian and Indian cultures, a smile is frequently used to cover emotional pain or embarrassment
Cheek dimples are visible indentations of the epidermis, caused by underlying flesh, which form on some people's cheeks, especially when they smile. Dimples are genetically inherited and are a dominant trait. A rarer form is the single dimple, which occurs on one side of
While smiling is perceived as a positive emotion most of the time, there are many cultures that perceive smiling as a negative expression and consider it unwelcoming. Too much smiling can be viewed as a sign of shallowness or dishonesty.[9] Japanese people may smile when they are confused or angry. In other parts of Asia, people may smile when they are embarrassed. Some people may smile at others to indicate a friendly greeting. A smile may be reserved for close friends and family members. Many people in the former Soviet Union area consider smiling at strangers in public to be unusual and even suspicious behavior. Yet many Americans smile freely at strangers in public places (although this is less common in big cities). Some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don't smile enough. In Southeast Asian and Indian cultures, a smile is frequently used to cover emotional pain or embarrassment
Cheek dimples are visible indentations of the epidermis, caused by underlying flesh, which form on some people's cheeks, especially when they smile. Dimples are genetically inherited and are a dominant trait. A rarer form is the single dimple, which occurs on one side of