I was standing on my back deck, looking at stars. 3 lights in a triangular shape caught my eye. It was slowly moving to the left. At this point a friend who was with me saw it as well. I thought it may have been a plane. Then it stopped and hung in mid air. A second later it began to slowly move upward in a rapid zigzag pattern. It stopped again, before shooting off towards the right. It was then that both me and my friend lost sight of it. Each light was about a thumb length apart. Earlier in the month a saw a similar ufo, also while stargazing. This one appeared much larger, about twice as large. It was to the west however, and was only visible for two seconds. No one else with me saw the first one, and I dismissed until a month later when me and a friend saw this newer one. It in itself did nothing to me psychologically, however the experience had a profound impact on me, and ever since I have seen life differently in some ways.