Did she want me to talk to her?

So I thought this girl who I just met didn't like me because she didn't talk to me after the first day I made conversation with her. So i'm asking this to see if she's uninterested or wants me to talk to her first. Considering we had a good first conversation, with her asking me questions in return. And saying bye when she left. Anyway i didn't talk to her for a week after that. I just didn't get a chance. Then Yesterday at lunch someone who sat at her table was looking at me. Then the girl i liked got up and walked past my table twice.. Then later i saw her at her locker, when i walked past her and by the time I was done with my locker and walking back, she was still at her locker.. Putting the code in. Hmmm. Then i was standing outside after school and she came out and went to the same spot she did when we first met.. I was right there and the thing is she didn't say anything to me so i assumed she didn't like me. We're in high school and she's a junior. I'm a sophomore