Throw a house party
Everyone loves a housewarming party and moving into a new home is no exception -- people are always keen to show off their new property to family and friends. Rather than limiting the invitations to people you already know, however, why not invite your new neighbours to come along?
The atmosphere is likely to be noisier than a one-on-one meeting and provides an opportunity for everyone to mingle. Existing neighbours should already know each other so there will be some familiar faces in attendance who they can socialise with.
Offer a gift
When businesses reach out to new clients and customers, they often accompany their introduction with a gift such as chocolate or some useful stationery.
While it's probably not advisable to give your new neighbour a ballpoint pen, a tin of chocolates could acts as a lovely introduction to your family, and net you an early spot on next door's Christmas card list.
Likewise, testing out your new oven with some baking can reap benefits if you take some of the produce across the street for people to test. Everyone loves cake, and chances are you'll be invited in for a cup of tea to accompany it.