Just approach with a smile, and be your self, don't try to show off just keep calm. Remember she is as nervous as you are. Some girls expect you to take the lead as you are the man. Act natural. Say hello with a smile, and find something to say, like how did her trip go till here, if you have picked the place to visit, then say, Hope it is okay I choose this place, and tell her why you choose it or something like that. Just approach her as you approach your male best friend. If you get nervous then I tell the girl “Please don’t mind, I am bit nervous as this is our first meeting”. And when you have sat down just start with the conversation you already have had before you two mate, like in chat or msn or mobile or something. Be honest. Coz if you start a relationship with lies and show offs, that will end up pretty soon. Wish you all the best.