In theatre, when you act mad at someone, what movement can your body make, so your not just standing there?

Throw your arms in anger clench fist what you would do when your anger

It depends on what type of mad reaction you're looking for. you could;

1. Clench your fists and maybe stomp your foot if you're looking for an exaggerated, maybe even comical display of anger

2. turn away slightly and grab your head/hair in a slightly hysterical anger

3. Shake your fist at them

4. Cross your arms over your chest

Or some combination of those things, I hope that gives you some ideas!