Hi....

你好!

Hello! ^__^

It really is difficult but, I can definitely help you with English. The best way to learn is to do, as we usually say over here.
^^
And I would love that! My Chinese isn't very good.
说/写中文让我很不好意思。 I try, though.
Just don't make fun of me, haha.
xD

Nice to meet you too.
:D

I saw you on the Language Exchange. Your English is pretty good, though.

你好吗?
:D