be in the mood (for something/to do something) idiom
C2 有意（做／要…)
to feel like doing or having something
We could go out to eat, if you're in the mood. 如果你想的话，我们可以出去吃饭。
I'm not really in the mood for shopping. 我不太想去购物。
He seemed to be in the mood to fight. 他似乎想打一架。