My crush doesn't realise that I like him! HELP!?

Okay. Here are all the details. I hang out with a group of guys often. But I have a crush on my best guy friend. He doesn't notice. And if he does, then I don't know if he likes me back. I can't ask anyone to ask him for me. That's the pussy way of it, and I'll be branded a 'wimp' for life. I want him to notice me more. My uniform is brown, so I don't think I can do much about the clothes. I really need him to know that I have a crush on him. I've been crushing on him for 3 years. HELP HELP HELP PRETTY PRETTY PLEASE WITH A CHERRY ON TOP!!!!