This may shock some...but my real name isn't "good times".
In person and in most correspondence we use our real names, why not, as someone else said first names are plenty anonymous.
The only folks we ever met that used fictitious names in person was a couple who used to come to the clubs. He was an attorney that was very politically active, did TV and radio ads for his party and such. Funny thing is, by using fake names they just caused people to ask behind their back, "Isn't that "so-n-so" from TV?" To which we would always respond, "yes, but don't tell him because he doesn't know it. If they would have just used their real names nobody would have thought anything of it. As it was, by using fake names they called more attention to themselves than they would have received otherwise. Then again, maybe that was the point.