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Why do people stick out their tongues when concentating on something?
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May 29th, 2012
My brother was famous in our family for sticking the tip of his tongue out of the side of his mouth when concentrating on something. Homework or fixing his bike it didn’t matter , out would pop that tongue! I’m sure I do it to ( I just don’t admit to it ). Any one have any idea as to why humans do this?
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