Monkey: I want it! (he is only 3)
Me: Leave her alone and wait your turn.
Monkey: Humph (followed by a foot stomp and his angry face)
Me: Don't stomp your foot at me.
Monkey: Sunshine hit me and I domp my feet and day humph. (S's are not an easy sound for him)
I suppose it's good that he didn't haul back and hit her and only stomped his foot. Of course Sunshine didn't hit him.
It's not easy to fake an "angry face" but this is pretty close to it.