I am not in a gated community. We have a couple of dogs and know our neighbors pretty well. The ones next to us have a bbq twice a year and invite the entire cul de sac. When the wind blew down our fence in the last storm the neighbors below us kept the dogs at their home for the entire day and when I got home from work they came up and let us know what happened.

I think it varies with the neighborhood because the neighborhood where we were renting off of Calle Cristobal was different. People were much more introverted and kept to themselves.