Our neighborhood used to have a "neighborhood watch" meeting every 3 months. National Night out is the first Tuesday in August so that would be our 3rd quarter meeting. We did the usual stuff like talk about the neighborhood and community issues and we had a BBQ potluck. The host house provided the BBQ and everyone else brought a dish to pass and whatever they wanted to BBQ. She also contacted either the local fire department or sheriffs department and they would come by and if kids were at the event they would get to meet them and maybe see the fire truck up close or law enforcement. She provided popsicles for dessert. All in all pretty low key, but a nice way to get together with your neighbors.