<human>: In still in highschool but the group of friends I've hung out with the past ~4 years are pretty much all majoring in some engineering, myself included. (So you get the idea of what we're like). So early this year I met a pretty cool girl, didn't think much of it because I don't consider myself too attractive (i didnt find her very attractive at first either) so whatever I pretty much just assume friends. I get pretty much 0 female interaction and never go out of my way to get it, so this girl coming up to talk to me often and joking/flirting around had me in a bit of a tizzy. Then it seemed all of a sudden she's best buds with all of my friends and in every club that I (and my friends) am in. It just seems that she flirts/jokes around with every dude and is extremely comfortable doing it, she's a genuinely great person though. 

My question is, how do you tell if a girl like this is into you or just comfortable around you? I was going to ask her out but at this point I see her multiple times a day, she's good friends with all of my friends (and more), and I'm fairly certain a few of my other friends are crushing on her. Hence, I feel like making any kind of move might make a few of my friendship/club activities pretty awkward. 

Examples of some of the mixed signals I felt I was getting:
1)She asked for my number. She's literally the only girl I've ever texted at this point

2) she always came up to me after class to talk for a few weeks even though I made no suggestion that I was interested in talking to her.

3) she fucking joined *chess* club and cites me as the reason

-1) I pretty much always text first

-2) conversations are always boring and never personal

-3) we end up talking about other guys and random pointless academic things during clubs.

Can you summarize the given text in a few sentences?
<bot>: How to tell if a confident girl is into you or just comfortable with you? I feel like I might he running into this situation a bit more often in college next year