joking

a. 戏谑的,开玩笑的
vbl. 戏谑,开玩笑

I knew she was joking because she had a big grin on her face.

我知道她是在开玩笑，因为她脸上堆满笑容。

Laughing and joking are considered improper behaviors at a funeral.

在葬礼上发笑或开玩笑是失礼的行为。