Help pls

I'm a fourteen-year old living in South Korea. Here, its rlly common for kids to go to like 5~6 academies bc of the bullshit public education. You can't even study in a univ in Seoul unless you grind shit 7 hours a day. Anyway, I have a girl sitting in front of me in my math class, and she keeps staring at me when I'm not looking and always looks the opposite way when I make eye contact with her. She's actually kinda cute (like skinny latina-ish) and I'm not that bad especially compares to all those other bastards in my class. Anyway, I've barely spoken to her, and the only topic we've discussed is how many detentions you got in school. Kinda shitty ikr. BUT I really want to know her a bit better and thus I rlly want her number. Any tips on how to do that would be greatly appreciated. (I'm 5'6 weighting 116 pounds, the girls like 5"4 and maybe 96 pounds idk)