Other primates do it to some extent and then it's interesting when they do it.

其他灵长类动物也在一定程度上有这种特性,但它们的笑很有意思。

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There are some preferences with humans and with other primates to favor faces.

人类和其他灵长类动物,都对所喜爱的面孔具有一定的偏好

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But humans, primates in general but particularly humans, are masters of deception.

总的来说灵长类动物，特别是人类，都是欺骗大师。

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Nonhuman primates smile as well.

灵长类动物也可以微笑。

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