Does anybody here have first impressions of people? And have they turned out to be accurate? For me, my first impression response mechanism has just become more attuned in recent years, and I'm 40 now...it was pretty much absent in my 20s.
It seems to be part of evolutionary psychology, that neurotypicals are endowed with the ability to "size up" people within 3 seconds of meeting them, and they actually believe their impressions are bang-on - even though statistics would show that they're nowhere near perfect. Even in "intuitive interviewing" for jobs (e.g. "I know the right candidate as soon as he/she walks through the door!!", which so many hiring managers swear by, was exposed in an article as being only about 57% accurate based on how the candidate turned out in the first X months - not much better than flipping a coin. For (young) women, they claim they can tell who the "creepy" or psycho guys are "right away", but that seldom seems to be true.
I mean, the very fact that so many of us get the response "You don't seem to have Aspergers Syndrome" upon telling somebody early on, proves that their first impression response is faulty. (Unless they're just being nice and polite, and feel uncomfortable discussing it - but that's another topic.)
Despite this, there has been the odd time in my twenties that I got "those vibes", but usually it was based on something more sinister-looking, like someone with tattoos or shaved head with a goatee or something - not the subtle nuances so much, obviously.
The writer Malcolm Gladwell says that in people with autism, "their first impression response is fundamentally disabled". I'm sort of inclined to agree with him. Probably to do with more emphasis on nonverbal signals and "thin-slicing" unspoken elements, which include clothes and grooming habits - so we see somebody who looks a bit sloppy, partially shaved, somewhat wrinkled clothes, and assume that they are disorganized (the "absent-minded professor" stereotype) when in reality they could be the most conscientious, organized and hard-working people.
Which is why, when I see people like this, they tend to bypass my filters; if I'm accompanied by an NT or two in such an interaction, they will invariably make out-of-earshot remarks after like "did you see what he...?" or "did you see his wrinkled tie?" and of course I'll just laugh and agree and go along with it, pretending like I noticed all along else I might just prove their first impressions wrong by proving that I don't have such impressions myself, LOL!!