Was in driveway.10:18PM CST ~88F, very high humidity. Clear. Saw two lights that were where flights don't occur normally, and when they do, they are low coming in for landing and you can see the normally expected lights. What was odd was that one seemed to speed up and then fall into lockstep with the one in the lead. Speed: ~Landing speed for a 737. Best Guess. We can always here the noise when the planes are there... but no sound. I guess the hair on my arms got standing. Not from any known external influence. Just a creepy factor. They got closer, guessing 1-1.5 miles at 3,000 feet? then turned to the NW and got steep and seemed to get high and dim quicker than I would have expected... and gone while more lights came from the E in roughly the same path. I won't use the word dancing, but it came to mind. I am wondering if this was a parallax distortion... the flight pattern was... just odd. Then one light got lower to the trees from my perspective and I saw that it was a helo. Moonlight... clear. No sound I was aware of. Distance 1 mile? Two of the next lights then turned NW, too, and flew up steeply. Gone in 10 or secs. The fifth hovered. Damn. But, from my angle, it stopped. Hovered. Guessing, 10-15 seconds.Then it appeared to go up vertically.Another 10 seconds and gone.I had just come down to my office with the first beer. Had a beer over Mexican at 6PM. I am a UFO buff. I am an engineer. Google me. And I am 100% expecting these to have been some airplane club ... or... I don't know. The perception of hovering is weird...Only saw one other unexplained. Never reported.So, I do expect to be told "It was clear air/hot air distortion. Go to bed."Thanks.