or is very smart

why not all the above!?

I got a friend who's just like green... Once you get past that he's pretty nice and chill though. (a gently reminder that he's not the only "smart" person and that it doesn't mean anything helps with that. Sadly a lot of person think low of him and didn't try to get to know him because of this attitude, that stems from bitterness and insecurity, so the problem only gets bigger... and who knows, my strategy might work next time you encounter a green person. -or maybe they're just huge assholes, and in that case you don't owe them anything and certainly not your time, so just fly away)

god the IQ levels are over 9000 with this one