I use a fake first name, same fake name I been using for 15+ years, I did use it once in a bar with the wife when another random customer started talking to us, I just explained that we had no idea who he was and better to be safe, think I got away with it. Never been asked for a surname. I'm happy to talk about my job and where I work as loads of guys in the area do similar jobs, and people not from the area are generally interested in it, especially girls touring from down south.
There are a few punts I've been to where I can see some of the taller buildings on my street from the WGs window, and I've told them as much, but never told them which street I'm on or the number.
I'm not really bothered by most of the WGs as they are tourers or EE. Only ever punted 2 locals, play my cards very close to my chest with them.