Universal Language - Smile

Realizing that there are many language, either in words or in signs (actions), that are understandable and are widely use in the world. I have decided to gather them one by one; and that is how this series that I called "Universal Language" is being launch. I hope you enjoy this and at the same time learning something.

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My today's universal language is the "Smile." To some people, giving away a smile is very natural to them, while to some they find it very hard to smile to somebody. If you work in a customer service, smiling is necessary to make you look approachable. If you are a pre-school teacher, smiling is necessary to make the kids at ease with you. According to Wikipedia, cross-cultural studies have shown that smiling is a means of communicating emotions throughout the world, bu there are large difference between different culture. A smile can be spontaneous or artificial (when people feel obliged to smile). Happiness is most often the motivating cause of a smile. Among animals, the exposure of teeth, which may bear a resemblance to a smile, is often used as a threat—known as a snarl- or a sign of submission. In chimpanzees, it can also be a sign of fear.
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Whatever races, tribes or nationality you belong, rendering a smile almost always automatically means "We are good" or "Let's be friends". I believe that among all the universal language around the world, this is by far the best because "smile" is the language that even a baby can speak. The baby in the picture is my great-niece. She have the most beautiful smile in the world and she loves to smile on camera, too. Isn't she cute?
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Here are some quotes that I collected that I thought will make you smile, too:
A smile is the lighting system of the face, the cooling system of the head and the heating system of the heart.
-- Author Unknown