Why are you smiling?

你为什么在微笑？

youdao

What are you smiling at?

你笑什么？

《新英汉大辞典》

What would I do to see you smiling at me?

我要做什么才能见到你对我笑一笑？

youdao

She is smiling. If you know the story, her smile clearly says: "I won."

VOA: special.2010.04.25

Within 20 degrees of separation from you initial smile to the three people, the entire world will be smiling.

只需要20度的分隔,从你用笑容感染三个人开始，全世界就会笑起来。

哈佛公开课 - 幸福课课程节选

He's also a very likeable person, you know, he's always telling jokes, always smiling,

他也非常讨人喜欢，总会讲笑话，嘴上一直挂着微笑，

有印象的教授 - SpeakingMax英语口语达人

Barely a woman with only a song, I sang to keep you smiling and held you all night long.

NPR: Judy Collins, From Both Sides Now

And every Maurice story left you smiling...

BBC: Alps coach crash: British driver killed is named

Both of you are smiling.

NEWYORKER: Miss Lora