Does SHE want me? How do i know?

My birthday is March 27th, but as a class were are celebrating it Thursday because of co-op placement on Wednesday. Hi, i am a 19 year old boy turning 20 and in my first year of college. Never in my life have i ever been remotely close of dating a girl but this could be my first ever chance. I went in to college with a very positive and outgoing personality, far different from high school because i wanted to change my past. To say the least, i couldn't be any happier with my life right now.

Anyways, back to the story. This girl that likes me is going to make a cake for me for my birthday and bring it to class for Thursday (March 28th). About a week ago she texted me non-stop for 4 hours straight just about life and she was showing interest so i showed interest back. Before this all happened, i was never really into her and thought she was nice but that was it. Because of her actions, i feel so attached to her now and i am very thankful that she is showing so much interest in me and i'm hoping this chance is legit. THE BIG QUESTION IS when she gives me the cake Thursday, what do i do in return? What does she want? I've only been close with her for a week and a bit so idk if she wants me to make a move or still take it easy for a while. Any well thought consideration into my message would be great! I would like an honest answer! THANKS