表演表情的英语怎么说

表演表情的英语是 "facial expression"。

"Facial expression" 来自英文 "face"（脸）和 "expression"（表情）两个词，表示人脸上所表现出来的情感或态度。它是人类交流的一种重要方式，通过表情可以表达许多情感，如高兴、悲伤、厌恶、愤怒等。

下面是一些表示表情的英文例句，并附上中文翻译：

She smiled and her facial expression showed her happiness. (她微笑着，她的表情表示出她的高兴。)
His facial expression changed to one of disgust when he saw the bug. (他看到那只虫子时，他的表情变成了厌恶。)
She made a sad facial expression when she heard the news. (她听到这个消息时露出了悲伤的表情。)
His facial expression turned angry when he was accused of stealing. (当他被指控偷窃时，他的表情变得愤怒。)