People are getting to caught up in this. For me... If you add girls that you find hot from the picture out of randomness just to try and 'game' over facebook then that's creepy as fuck. If you have girls already on your friends list that you may know through Friend or have bumped into or they've added you then there is no problem with having a chat and trying to et to know them. You shouldn't wait to respond until you have something witty or funny or awesome to say you should just chat to them.

I talk to loads of girls on facebook! I don't try and game them and I don't randomly add them. I just chat and if there is something in common then meet up with them. Meeting people on nights out and on the street is deffinatley the way forward but if you happen to have some cuties on facebook and wish to chat to them well then chat to them.