Sorry to say this, but we all know that Kensington residents in particular may have reason to feel suspicious about newcomers of any origin.
Even when I moved to my very welcoming community abroad a few summers ago, I hardly met anyone until mid-Elul because everyone was away – here people go to EY for the summer but in Brooklyn the summer trips to the mountains have a lot to do with it.
On the other hand, a very yeshivish friend of mine from out of town said that he doesn’t know most of his neighbors after 2 years in ‘da hood (some part of Midwood-Flatbush).