the guy should make the first move. but otherwise, just be you. and don't be afraid to just ask him
make sure not to show much. It's not gonna be a good conversation if all thats in his mind are (.Y.)
Just ask! the simpler, the better.
Just get into a casual conversation and then ask if he'd like to *get lunch/get coffee/go for dinner/meet up/whatever* some time. If he's interested he'll show it and you can go from there.
Boobs are a def. indicator of interest flirt a little not to heavy and ask him on some real shyt just keep it real
boob works...guess it depends on what you want from him...or how about "hey lets go get some coffee/tea/carmel"