A Girl at my College that I Like?

If you see her around smile in her direction... Just make sure it isn't a creepy smile... Also in maths start by bringing up topics about maths, pretend you need help... Ask her how her day is... Slowly work your way in to talking about hobbies things you like...for example if she is wearing a bracelet or necklace, compliment it, ask where she got it from and whether she likes shopping there... Eventually you'll build up the courage to talk and ask her out... Hope this helps good luck