Search Results: show her i'm interested

So im a high school senior who likes a sophomore girl. I met her last year in a class we had together and we sort of got to know each other. I didn't realize it, but she was flirting with me a lot. She always started the conversation, asked how my day was, complimented my shirt, etc. She said we were practically dating. She said she would have went to prom with me. I liked someone else at the time and I was oblivious, but now I'm really interested in her, so here is what's happened since last year :

She followed my insta out of nowhere before school ended
We didn't really see each other over the summer

She said hi to me again on the first day of school. I asked her how her summer went and stuff
She wished me good luck two or three times for games
She always starts the conversation with me
I see her glance at me in the hallways
She quickly brushes her hair as I walk past
She smiles and laughs a lot when talking
Always looks directly into my eyes while talking
She jokes around when talking
She touches her hair while talking to me

the other day I saw that she popped up in my Snapchat quick add, so I friended her. She friended back right away to say hi and ask how I was doing. We talked about her sports game and stuff and she always replied quickly and wrote a good amount. She sent cute and kind of silly pictures, and she's been one of the first to view all my stories since.

I want to talk to her more and ask her out. I was going to just walk up to her, tell how fun to talk to she is and that I like her a lot, ask her to go out with me..

Unfortunatly, we hardly see each other at school, though when we do we usually talk or wave and stuff, but I don't know if I should just ask her or maybe continue talking and snap chatting her. We let our conversation go after we both went to sleep, so I'm not sure how to start it again or tell her to start a streak. I know it sounds stupid and I should prob just ask her, but I just really want to know what is going on inside her head.