just try to talk about your favorite things then try to talk like you enjoying the conversation

Find something the both of you have in common and then just approach her and open a conversation like that! "Oh hey, i noticed you like drawing too! Can i see some of your drawings? :)" Dont get too into oh what if she doesnt like me what if she doesnt wanna talk to me then youll lose any kind of confidence you once wouldve had and as long as youre a normal human being and dont smell bad she wont be mean to you

Idk, maybe just help them with stuff, like when classes are and stuff. Maybe also ask them about their interests, and if you are interested in something they are interested in, you guys could talk about that. idk, that's the best advice I could come up with ;w;

try starting a conversation like "what's your favorite subject?" try finding a common interests