I’ve actually found suburbs to be extremely social, much more so than urban areas were you try to avert your gaze as you walk past your neighbors if you accidentally end up in the hall at the same time.
in vienna people usually greet each other in the same building, even if they don't know each other. could be that is only true for me as I greet everyone and maybe they just do it back.
Ya maybe it's a U.S thing idk. I make a point of being as friendly as possible, and live exactly where I do in kind of the more low-key former streetcar suburb area with bars and such around, so that I can shout to friends if I see them on the opposite side of the street