I live right outside the city in a suburb, I absolutely know all of my neighbors extremely well. If you are asking whether they know I hobby, absolutely not, but we not only wave, but regularly chat, hang out on the street and drink beers. It was the same when I lived in Roxborough, the same when I lived in TX, and the same when I lived in NYC (minus the outside drinking). I remember going back to my old apartment area in NY many years after I left (for nostalgia reasons) and my neighbor even recognized me and we caught up.