Don't look for someone to be your boyfriend. Find a guy that maybe looks cute or something about them attracts you to them. Talk to them as friends, get to know them, hang out and do things you both love. And if it's meant to happen it will.
Agreed with #eightball1067. Be yourself.! Never try to be someone your not, the relationship will not work! If you just be you, a guy will eventually come around, and like / love you for you, and no one will ever have to change themselves for the other! :)
If there's a certain boy you like, show a bit of emotion towards him. Make it obvious that you have feelings for him. Some guys are just to hard to get a grip of. My first boyfriend was at eight. He was cute. But, when I turned eleven I met my boyfriend that I w a n t e d. He will be the one that makes your heart spark up everytime he's near. If you dont feel that, he isn't worth it.