1. You annoyed her. She'll roll her eyes and go silent, not caring to talk to you. She's just a bit irritated.
2. you made fun of her clothes or something. She'll glare at you and mutter under her breath angrily. Usually she's just a bit mad.
3. You upset someone she cares about. She'll stare at you with a pissed off look on her face. She's probably planning something. She's pretty pissed off.
4. You hurt her and/or someone she cares for. She'll clench her fists and look away, her eye's probably twitching a little. The air around her probably has an aura of anger. She's extremely pissed off.
5. what on EARTH did you do to get this bean here??? She'll stare at you with rage in her eyes. If she's standing she'll slowly walk toward you, muttering under her breath while her eyes flash a deep red. Her fists are clenched and she is PISSED. She's ENRAGED.