Here's some things to be known about me and the Grey race.
My job is the Extraterrestrial Ambassador for the United State's understudy. I just help the guy (pure grey) talk to the various nations (right under your noses idiots). He goes and talks about every year or so offering his thoughts on your planet's plights and perls.
I'm a grey/human hybrid originally born on Earth, so I'm one of the "dumber" aliens floating about. That's why I've got the job at the United Nations. I'm also more creative then most greys you'd meet (because I'm part human as well). They're more focused on Math, Science, and the like- there's no time for anything else.
Current technologies available for the Greys are Time Travel (they know all of the human race's history), interdimensional travel, complete organism cloning, and knowing what happens after complex organism death just to scratch the surface (although I don't know anything about any of these except for interdimensional travel). They've colonized on thousands of planets, in various galaxies, and they're badass.
My avatar is a picture from the "Mexican Roswell". I've actually met the guy in the picture. I shouldn't post an actual picture of myself, mostly for security reasons.
