Unlike IQ, which seems to be fixed after age five, all of us can work on skills like smiling or a positive attitude, traits commonly found in individuals with high social skills.

智商一般在5岁以后就基本定型了，但微笑、积极的社交态度等有效的社交技能是可以通过努力得到提高的。

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I had encountered a whole social class of delightful teenage cashiers, smiling at me while they went about their dreary job.

我简直遇到了整整一个社会阶层的开心的年轻女收银员，她们一边对我微笑着，一边忙着手里乏味的工作。

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In addition, smiling is important for success in the business world and the social occasion.

此外，面带微笑是非常重要的成功，在商业世界和社交场合。

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And this is my colleague, Marianne LaFrance, who is actually not smiling in that picture but she studies smiling and smiling in adults, smiling in children, smiling across cultures, and the different social uses of smiling.

另一位是我的同事，法国人玛丽安，她在照片上没有笑,但她研究微笑，成人的微笑，孩子的微笑，文明的微笑，微笑的不同社会功用。

耶鲁公开课 - 心理学导论课程节选

Seeing his always smiling face, and him seeing me approaching, brought out joy in each of us social beings who have been in a lack of social encounters.

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