Dancing Lights in sky as a child.

When I was 16 years old my bedroom windows faced south towards Boston. In the Winter I had a clear view from my window in Beachmont all the way to the Blue Hills in Quincy. (Across Logan Airport) Well one night I noticed in the sky pretty far away (I'd guess 10-20 miles) at about a 40 degree angle off the ground, two small but bright lights (about the intensity of Jupiter) chasing eachother in strange circles, zig zags, drops, changes of direction, reverses, stops and hovering. This went on for about an hour until the both zoomed upward and toward the west until they faded from view. I had the impression they must have been over quincy or farther south. I had seen airplanes out this window for 16 years up to that point and had never (nor have I since) seen anything like that. They were not airplanes. Just small, dancing, dots of lights.