the girl i like introduces me as her friend...?

[.... o'oswald]

so i met this girl last semester in college. we hang out quite a bit but never really do too much, (neither of us have any way of getting off campus to go somewhere) i really like her, i think she's amazing and i'm going to ask her out, but yesterday in our history class she introduced me to a girl friend of hers as "my friend...". i feel like she likes me as more than that, because she always wants to do things when i ask, and she's always laughing, joking around, and just playful when she's around me. i feel like she enjoys any time we spend together, but it confuses me that she called me her friend. i really want to be more than that. could this be a bad sign, one that means that that's all she wants, or could it just be because i've yet to actually ask her out, we always just "hang out" which is stupid because that could mean anything. i'm confused. please help