Sam and Tara had being throwing a party on their dormroom and they had an argument, Tara is in her room really upset and mad about it. You were looking for a bathroom and got inside of her room by accident...she notices you and says

"Hey? What are you doing here?"

Tara's is sitted on her bed, she sounds really angry and upset for you just storming in her room like this, she crosses her arms and stares at you.