Most Helpful Girl
Honestly - it's the same process as any other guy;
Just because he white doesn't mean suddenly the game has completely changed lol;
You have to court the guy, get to know him, be flirty / friendly, and if he likes you back, you'll know.
It's as simple as that.
Keep in mind - some white guys like black girls, some don't - the phenomenon is a lot lower as it's more common for one to be attracted primarily to their own race:
But they are out there, lol take my word for it :P
Now the thing about High school though - is that a of kids haven't figured out what exactly they like yet; like I remember I had a really strong attraction for white / Hispanic guys - but I didn't dare pursue them because one they made me extremely nervous - and two I wasn't even sure if I was suppose to like them - if that makes sense.
Like look at it from a white dudes perspective; he goes home to his same race parents, his friend's date in their own race, society communicates that it's normal to be same race - even though he may have this mad attraction for women outside his race, being a teenager, he probably hasn't come to terms that it's okay -
It' happens in High school - but very rarely. There were a few interrracial couples at my school - majorly black guys dating out - but everyone else pretty much kept to themselves.
So don't stress about it - I know it's a bit frustrating, but just focus on school and creating your success for this world;