They are clapping their hands.

他们在拍手。

youdao

We saw the audience clapping their hands when the popular singer appeared on the stage.

我们看到当那位当红歌星出现在舞台上时，观众纷纷鼓掌。

youdao

In the deaf culture of North America, many listeners show applause not by clapping their hands but by waving them in the air.

在北美的聋人文化中，许多听众不是通过拍手，而是在空中挥舞双手来表示鼓掌。

youdao

It is generally performed only by women, each one taking her turn in the center of the ring surrounded by others dancing in the circle while clapping their hands and singing.

UNESCO: Intangible Cultural Heritage