1. FIND OUT IF HE HAS A GIRLFRIEND/BOYFRIEND
This is really important if you don't want to get hurt. Try to find out right away so you don't get attached or anything.
2. HAVE MORE THAN ONE CRUSH
If you have multiple crushes at once, chances are you won't get too attached with one of them and if you do, you have more guys/girls to think about. Don't flirt with all of them at the same time, though. You won't be taken seriously by any of them if you do that.
3. DON'T LISTEN TO SAD MUSIC
It sounds like it has nothing to do but trust me, sad music can make you feel like crap sometimes. It makes you sad without having a reason to be sad about. If you're sad, you overthink. If you overthink, you start thinking about your love life. Love = crushes. Crushes = facebook stalking. Facebook stalking = you find out something you didn't even want to see in the first place.
4. HAVE HOBBIES
If you're distracted during the day, you won't be thinking and daydreaming about your crush that much and if your hobby is an exercise it's actually better because you'll get tired and you'll sleep faster and you won't have time to be thinking about them.
5. DON'T FALL FOR THEM BASED ON LOOKS
You could end up very very disappointed when you get to know them because you daydreamt about them nonstop and you may have created this fictional person who might not be who you thought they where.
6. HAVE HIGH STANDARDS BUT DON'T BE UNREALISTIC
You can wish for a McDreamy all you want but that doesn't mean you will not give anyone a chance until you find one. Go ahead and go on dates and don't turn people down just because they are not what you want them to be. Be real. Be yourself.
7. DISTRACT YOURSELF FROM THEM
You could end up in love with them if you always think about them so go out with friends and try not to bring your crush into the conversation that much.
8. FOCUS ON BECOMING FRIENDS INSTEAD OF DATING THE RIGHT AWAY
First get to know them. Maybe you won't even like them after that. Take it easy.