Does this girl like me?

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im a guy, Ok so I met this girl through mutual friend group at a football game, afterwards we all got a movie and watched it at my friends apartment, I was on the couch and she was on a chair well she was like I wanna sit onthe couch and came over and sat halfway on my lap on purpose, or so it seemed, between me and the girl next to me, well we had a fun Night as soon as she left she added me on Facebook and liked a bunch of stuff on my Wall , well I saw her again and got her number , we went to a halloween party with friends and had a.good time dancing and stuff,its always fun and we joke with each other and stuff , I make her laugh a lot, Idk am i just overthinking all this or do i have a chance? I wanna get to know her better and ask her out I just want a second opinión thanks