This kind of smile goes beyond just showing friendliness, it could be to show real excitement about something or a laughing smile, showing that you find something really funny.

这种笑不仅仅是表达友好，也有可能是对某些事情很兴奋或者发现一些很有意思的事情。

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Thee bald guy started laughing, too, and just as loudly as the other men. He said to his friends, "How can I expect my fake hair to stay on my head when even my real hair won't stay there?"

秃头老先生也开始大笑，笑容和其他人一样灿烂，笑声和其他人一样响亮他对朋友们说：“我的真发都急慌慌地要离开我，我的假发又怎么会愿意呆在我的头上呢?。

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You could also try substituting innocent words. Everyone will be laughing for real when you yell "Suffering Succotash! " next time something goes wrong at work.

你也可以尝试用委婉无害的语言替换掉爆粗时常说的一些话，当你下次在工作中遇到麻烦而大喊“苦难的豆煮玉米”时，同事都会被你逗乐的。

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Most people are, in fact, unaware that this site does not represent the real Livestrong and Lance is laughing all the way to the bank.

FORBES: Lance Armstrong Is Still A Cancer Hero

The real villains of the Premiership are laughing their heads off.

BBC: SPORT | Football | No spit in the ocean

When the camera cuts back to the real anchors after each sketch, they often are laughing or shaking their heads.

WSJ: Show Trial: Puppets Act Out Corruption Case