I know its too late now but just for the future.

So I approached her and her two friends with my friend and opened with something, chatted a bit, found out it was her birthday etc. Walked away to do some other shit then saw her again probably an hour later and we started talking one on one. Basically she was "critiquing" me, and by that I mean like "Oh you dress nice but when you approach girls you should XYZ instead of this." Also at one point my friend had these hot pink sunglasses that I stole from him and was wearing on my head and she told me they "made me look gay and that I should take them off if I wanted to get girls". Then she made a bet with me that she'd buy me a shot if I could hookup with a girl while wearing them at the bar. We ended up talking a bit and I eventually bought her a shot since it was her birthday and all. Im just curious if these are signs of her being into me or was it her way of friend zoning me.

edit:how boss would it have been if I started to make out with her while wearing the glasses, fml why did I not go for that