Tell me if this girl is just friendly to everyone or there are small hints of IOI.

The girl in question is someone I bump into from time to time at my university's yoga class. At first I just think shes a really friendly girl. She really easy to talk to (+1?) but its only me asking questions (-1?). We are really receptive to each others light kino (+1?) (hugs, correcting our poses, stretching each other), but I feel its only a mutual yogi vibe (-1?).

I notice at times, that she kinda lingers around we are hanging out in the lounge or at the tea station sipping tea, like waiting for me to make a move or ask her something?? or she leaves the studio when I leave when even though she's in the middle of chatting with her group??

We traded numbers since but she's sent me like 2 text in total basically saying 'nice seeing you, thanks for sharing your yoga, helping me stretch, etc..' (+1?), but doesn't respond to my text (-1?)

And no, I did not attempt to ask her out because 1) I can't find an opening to isolate coz shes usually occupied with her friends and gossiping after class. 2) and yes, its because I'm a puss level 0 noob, fyi.

Is she just friendly or is she showing IOI??