In club I've watched eachother with girl. Then I smile, girl smiles back (sometimes giggles too). Mostlikely she does this twice.
I've wondered what if I wave girl that "come here". Is it good idea then start conversation: "You seem to be interesting, whats your name..."?
Do you think that first changing smiles and waving girl over here is a good idea? What do you think... More tactics and ideas please.