I grew up in the high sierra mountains by lake tahoe. Multiple times as a small child while star gazing at the nearby cow pasture I observed (and was acknowledged) by alien visitors. I had always remembered seeing the "pill" shaped vehicles make 90 degree turns and literally appear and disappear ....but after visiting the Roswell UFU Museum last week...it somehow unlocked some old memories. I was under the impression that that they were visiting the area to collect information on the cattle (and possibly frogs) in the pasture. I never felt scared and multiple times they approached me and would put some object over my right hand. (Years later I dug out what I thought was metal sliver from my index finger..but maybe it wasn't??? I still have the scar) The aliens were a little taller then me and seemed to glide more than walk. Greenish grey outer color, large dark blue eyes, large heads.