Do your best to take your mind off of it by thinking of peaceful things, and remembering the good things.
don't worry about who wears school uniforms. it will take your mind off of more important things, ---
I think the best thing to do is allow him to have the time to see what's happening to him right now and then take him out to keep his mind off the breakup. You could take him to a movie, park, out to eat etc., there are plenty of things to do when someone has gone through a breakup. Remember though to attempt to keep his mind off things.
Just think of 20 (approximately) different things. They'll take your mind off it. If it comes back, think of 20 (approximately) different things again.
you start to daydream because you feel bored or tired and just want to take your mind off things for the moment.
play a technical video game!
He most probably did something creative like writing lyrics or dancing to take his mind off of things.
Do something you like to help you take your mind off of her. Hang out with other friends.
Distract yourself with other things (friends, activities, etc.)
I think take some time in yourself and think about the experiences that you are with her! While thinking about that you can tell to yourself that all memories you have with her is part of your life!
Playing soccer can be a stress reliever because it is an easy sport to get anger out. Also soccer is a complicated game to take your mind off things.
The best thing you can do to get anything off your mind, including a crush is to keep yourself occupied.