I'm with Annette, I consider everyone a friend unles they prove themselves differant, so Idon't get the point. But I do add people when they ask, I have never had anyone "strange" ask to be added any way.
PS.. I was a Girl Scout untill I aged out at 18 and that song to this day runs through my head at times..along with the attitude ALWAYS leave a place better than you found it. When I move no one ever has to come behind me and clean... just a Girl Scout thing