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!
I'm not in this class but what it sounds like Yes when you are taking photos you are aiming to take pictures of things like The vows and the exchanging of the rings and the kiss so it is both telling a story and capturing emotion.
