Dear Guest, I think that you are asking the wrong question. I would ask, "why do you feel shyness with this girl?" It's not like you're a shy boy at all. Maybe it's about self-esteem? (you said, as you're different in your school, that makes you feel more confident). If it's just environmental, then change the environment. I'd say this, you sound good enough to be able to go on with a white and a black girl. So, what's keeping you this time? Hey, I understand, korean girls look amazingly cute ^_^' (I want one for myself!!!, lol, it's too bad that I can't speak korean) but I think you've got the skills.

Let's run on some background, and keep in mind that you're a junior, so you're around 16-17 years old. And that she's korean (that is, asian). Definitely, asian girls are a lot more shy than non-asians, so be prepared to go under more hardships than usual. But, hey, good things are not easy to get, are they? If you want to go the shy way, go this way: start by just the two mandatory words: hi and bye. Now, read what is her body and gestures saying (I won't go further on this topic, as you should know about this. If you don't, google it or ask it in the forums xD ). You're meeting in church, so it's not like she won't see this "suspicious". Some hi and byes after (1 to 3, just to say a number), you might start with a "hey!" instead of a hi (that is, more informal). Just talk and know eachother better. Maybe you'd find a common interest, and then, bingo! Now you know where should you invite her out to... and it makes it less awkward. You'll know if you're doing well... the rest is up to you. Good luck!