Whenever we smile, nerves and muscles may transmit messages that turn on happiness centers in the brain, Laird speculates. "The bottom line is that a smile doesn't cost anything and may do you good."

拉瑞德推测，无论何时我们微笑，神经和肌肉会传送打开大脑中快乐中心的信息，“结果是一个微笑不花费任何成本而可以使你感觉良好。”

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Whenever someone asks you something you don't want to answer, smile and ask "why do you want to know".

当有人问了你不愿意回答的问题时，请微笑着问他：“你为什么想知道？”

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The only way around this is to put, and keep, a slight smile on your face whenever you are in front of a TV camera.

FORBES: Smile For The Camera -Media Training