How Do You Get A Guy's Attention

I've been wondering for a while now...

How do you get that special someone's attention. I think I'm going about this wrong, but if I get a 16 year old boyfriend who likes me for me with all my craziness that i decide to show him every other day then I think I've done a great job. If not, then how. I don't think anyone will ever love me just for that reason that I do not approach them with a "Hey, what's up wanna do this...?" I approach more like, "Hey, what's up, you look nice! Did you know that...?" I tell them something that probably most other girls wouldn't plus I'm weird behind the scenes and in person so I think that's either a total turn-on or turn-off. I will never know!~ I want him to tell me, but also I don't because what if he tells me to get away from him (then again he doesn't seem to be getting bothered or else he would have said something, no? Guys are jerks!) I really just want to say to him, "Hey, I like you, want to be friends?" but he never engages in a real conversation with me, so it's hard to tell if he'd ever actually be my friend. Like I don't think he'd ever say, "hi" back to me and that really disappoints me. I really want to be his friend, if even I get a chance, and if I'm lucky maybe I'll be his significant other. I really do hope so. All that horoscope stuff, well I find it as a hopeful thing, but I don't really believe it. When I found out he was a Gemini though (I'm dreadfully in love with Gemini's, like second coolest sign next to Virgo[I'm a Virgo]) I was freaking out. 

I'm a romantic and I hope that one day I do find the right guy, but if not, I think I'll enjoy the single life very much.

If you could, please add a comment and help me out a bit. How should I approach this guy? He seems to smile, he even turns back when I tell him "Bye" to see me after I'm done telling him something crazy, so I don't know what to make of this. It's confusing. I'm more of a "tell me what you think of me no matter how bad it hurts" kind of girl. So not telling me is like "I NEED TO KNOW!!!"

Thanks for any advice, I appreciate it.