My wife and I had just gotten married when we moved into a small second story apartment in a coastal New England town. Houses were close by on each side of us; one house was rented by a married couple with young kids, and the other was rented by two young, rather attractive women. The neighborhood was quiet and everyone pretty much kept to themselves.
My wife is a tall, naturally beautiful, curvaceous woman (36C-24-36). I am six feet tall and played competitive tennis during and after college, so I am very physically fit. I am also an exhibitionist. I don't force it on people, but if they show a desire to look, I'm willing to oblige them.
As an example, our bedroom window was directly across the driveway, approximately thirty feet, from the upstairs window of our female neighbors. To see if they were interested in checking me out, when they were home at night, I would occasionally leave the shade up slightly, undress to "go take a shower", and then check from a darkened window to see if they had been watching. As far as I could tell, they were not interested, so I continued to be very subtle about it, and see if a spark developed.