There's something you should know about us girls: we don't expect you to do things perfectly! As a girl, I don't really judge guys by the way they start things, but the way they finish them. Maybe you came up to me, got shy and left without a word. That's okay, as long as you come back and try again. You can start with a smile, that's fine too. When I stand there and look all expectant like "well, say something!" I'm really just impressed you made it all the way over to where I'm standing. I'm silent because I don't want to take up the talk bubble if you have something important to say like "hi." Keep trying. The girls are nervous too!