A self-styled poet, whose signature was a happy face, penned: "Peek-a-boo/Don't know you/Got your dollar/Spent it too/What's your name?/

一位自我风格的诗人画了一个快乐的笑脸作为签名，写道：“藏猫猫啦/不认识你呀/拿到你的美元啦/也把它花掉啦/你叫什么名字呀？ /你是干什么的呀？

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There's another reason for putting on a happy face: it influences your brain in a positive way.

带上一副快乐面孔还有另一个理由：它能以积极的方式来影响你的大脑。

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If you're happy, and you know it, Then, your face will surely show it.

如果你感到快乐，并且你了解它，那么，你的脸上当然应该显现出来。

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Someone gets in your face and threatens your happy concept of who you are.

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That physical display of how you're feeling - for example, if you're feeling happy, the physical display of happiness on your face and, perhaps even in your gestures, increases the feeling of happiness, just as the physical display of sadness increases your feelings of sadness.

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