Most Helpful Guy
I am an Asian guy, and yes I would date a black girl. :) I've seen a lot of attractive ones!
As for what you need to do to get a guy's interest, just be kind and friendly, that's all. Really, that's it, lol! And if you like somebody, smile when they happen to look over at you -- because for many guys, it's discouraging if a girl doesn't smile at them or laugh at their jokes. xD They'll see that -- understandably so -- as the girl not being interested.
I can't speak for your particular guy for certain, but merely letting someone know that you find him attractive shouldn't scare most guys away. They love that kind of stuff, haha. It's made my day when I've personally heard it. :P In fact, that's a good, pretty safe way to start probing and see if a guy might be interested in you. It might not "happen" right away; you might end up staying friends for the time being. But it might start leading to more things, if he does turn out to be interested.
Most Helpful Girl
Don;t be afraid lots of Asians love to be approached by other races!