gesture

n. 手势,姿态
v. 作手势,作姿态

She gestured her disappointment by laying her hand on her forehead.

她把手放在额头上，以表示失望。

A speaker often makes gestures with his hands or arms to stress something he is saying.

演讲者常用手或手臂做手势来强调他所说的某些要点。