well, My girlfriend and I see them most nights of the week. There appears to be many consistencies in there behavior. The high altitude ones commonly appear to dive in and out of the atmosphere, you will see them flying by at a high rate(much faster than planes, satellites, or any other "known" craft. the flight characteristics are incredible. There is little light pollution where I live, and at over 5000ft altitude we have a near perfect view of the sky, we see many meteors, there is a lot of airplane traffic, so its busy up there and you can see everything. I have noticed many anomalies over the years here, I have always been highly intrigued. These last few months have been night after night with these things. The most significant experience happen about a week ago. Slow moving, Venus sized object, couldn't have been more than a mile up, felt closer. Moving almost directly above me, I have never felt fear in any of my experiences, but this began to unnerve me. Out of some uncomfortable feeling I raised my hand and began to wave to it. At this point it flared up to roughly the size of a full moon, I couldn't tell if it was a beam directed at me or what because I almost fell down in fear. I still get that feeling right now as I write this. Nothing else came about, it moved off as silently and slowly as it came. I won't go into more detail here, but there is more to tell, and show if you want to check this out. I can promise within a few hours or days, I can show anyone what I'm talking about.