介绍：

Save face 保住面子
to keep your reputation and avoid others losing respect for you.
I was late for the meeting but tried to save face by blaming an urgent call.
我开会迟到了，于是装作责怪有紧急电话来挽回面子。

Make a face 做鬼脸
The teacher scolded Jimmy for making faces at her from the back of class.
老师责备Jimmy坐在教室后排给她做鬼脸。

Get out of my face!
从我面前消失！
If this guy doesn't get out of my face soon, I'm going to call security.
如果这人不从我面前消失，我就要打电话叫保安了。

Sb's face falls
脸沉了下来
Her face fell when she heard he wasn't coming.
她听说他不来时脸沉了下来。

Be written all over (one's) face
满脸都是...
Jenny said she wasn't scared before we went into the haunted house, but terror was written all over her face.
我们进入鬼屋之前Jenny说自己不害怕。但是进去后她满脸都是恐惧。