KingTut is right. You may want to join a group.
They are likely to be in a more accepting mood and you will share interests.
In class people are focused on assignments and bored to death.
If your school has a fashion design course or something similar you can snag a chick from there cause its all girls and a couple gay dudes.
Or if your school has a pool and you are in shape take intro swimming. Its goofing around in the shallow end of the pool. Relaxed enviornment, chicks in bikinis. Avoid buying tickets to school theatre productions. There is no mobility so you cant mingle, you have to sit in your seat, and you aren't supposed to talk. Waste of time.
If a fun movie is coming out on the weekend you can mention you are going to see it and how good it looks, and a girl might say she saw it advertise as well, or a guy might say they wanted to see it also. So setting up a movie date could nab you a girlfriend or a regular friend. Or both.
Good luck.