Without looking at a dictionary, what comes to mind when you hear the adjective “fey” (e.g., as a description of a person)?
[The reason for my curiosity and thus the poll will be revealed later]
Nothing, as I’ve never heard a person described that way.
like a fairy (as in the imaginary creature, not a homosexual) - delicate, ethereal
edit: oops. missed the describing-a-person bit. in that case - emasculated/feminine, actually I associate it with homosexual slurs.
Unusually keyed up and optimistic, with a heightened sense of expectation of something dramatic about to happen.
Giddy and otherworldly.
A bit ditzy and not-of-this world…a tad bit “off”.
Ditzy, in a precious sort of way.
Elvish, frolicsome, effeminate.
Effeminate if it’s a guy, Tina if female.
Fairy like was the first thing that came to mind for me.
I picture it as a word that’s hard to picture, because it’s used in so many different senses.
So I imagine someone who’s all of these at once: strange, effeminate, elvish, and psychologically possessed in a fateful way, all at the same time.
Uh…someone who vaguely resembles Tina Fey.
Sorry.
Kind of out-there mentally. Somewhere between Cassandra and Reverend Jim.
Strangely bleak, somber, under some foreboding of doom or fate.
The usage that immediately came to my mind was from The Lord of the Rings, when Eowyn used that word to describe Aragorn’s mood before he departed for the Dimholt from the encampment of the Rohirrim at Dunharrow.
Sadly, my first thought was also Tina.
My second thought was spacey, scatterbrained.
<off to go look it up>
Either one of the Fair Folk, or someone setting out on an endeavour believing he’ll die.
Impish. 
Perhaps with a slightly more malicious connotation than impish, though.
Effeminate.
I must be thinking of Lord of the Rings, as well. Someone who just might be able to see a part of the Other Side, and doesn’t like it much.
Well, no, it doesn’t usually come up in daily conversation.
I assume they mean effeminate, but think “fey” sounds smarter. Almost as smart as “effete”.