youdao

My 12-year old son Jacob thought I was working too hard and not smiling enough.

我12岁的儿子雅各布认为我工作太累，笑得不够。

youdao

The behaviors ranged from the obvious (playing with your hair) to the subtle (not smiling).

他们提到的错误行为包括非常显眼的动作（玩头发），以及很微妙的表情（没有笑容）。

youdao

But I knew I was not really a White House reporter yet, because the woman holding my arm and smiling nervously was my mother.

VOA: special.2010.01.30

I think both of us would love to see your smiling faces, or at least your faces, even if you're not smiling at us every day.

我觉得我们俩都想,看到你们微笑的脸，或者至少是你们的脸，即使你们不是每天都朝着我们俩笑。

麻省理工公开课 - 计算机科学及编程导论课程节选

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

On the covers, you usually find skinny blonde starlets, not smiling, middle-aged black couples.

CNN: Commentary: Michelle Obama finds tabloid love

The behaviors ranged from the obvious (playing with your hair) to the subtle (not smiling).

FORBES: Magazine Article

Other problematic moves include not smiling, touching your face and using too many hand gestures.

FORBES: Magazine Article