After realising that she kissed you as a form of greeting, I have to take back my words.
Do NOT expect much from a girl like her. Kissing a near random guy, what the hell? In my time, all the slutty girls used to feel it necessary to hug random guys before class, but this is something new.
I mean...who knows where her lips have been. She might've kissed all your mates before she got around to you. Urgh.