So I had a fine conversation with a girl who was hanging out of her window, close to the street were I live. We talked about common interests, philosophied a bit, made some fun, ... she said that she loved retro. I said, 'I know a good retro bar', she didn't know it, I said 'we could go there once', she said, 'that would be nice'. The conversation went on, then I tried to number-close her after I said I would walk on. Then she said 'I don't like telecommunication, but you know where I live and you could throw your shoe against the window.' We said a nice goodbye.
All in all I know it went quit well, but I don't want to come over as needy, I think there is a little danger in this now. So with my next step I want to totally avoid neediness, if possible. In fact I want to totally blow her mind in some way. Maybe find a giant shoe to throw against her window (not one from stone, though

)
Any suggestions, ideas? Thanks!