They say that INFJs are extremely good judges of character, even uncannily so, and I have always found this to be true. I understand people very well, almost as soon as I meet them - it's something that's hard to verbalise, but I can often predict how they think, how they will respond to things, etc... It's like I get a "sense" of them as a person. I don't have to have had much experience of them. I can't explain it, it just is.
Whether that is for better or worse, I cannot always tell. With some people, I like them almost instantaneously. I just get a sense of "oh! I like you!! Let's be friends!" and I know that I can trust this person, and that they're *good*, as it were.
Other times, it's an instinctive aversion - and this is when it tends to get difficult and messy. I experience this a lot - I tend to see right through a facade of charisma or charm to the kind of motivations behind them. Politicians are a perfect example. We're in the middle of election season in Ireland at the moment - we went to the ballots today - and there's one candidate in particular I cannot stand. I just *know* he has all of the wrong motivations - but if I try to explain this to someone more ambivalent about them, they think I'm being unreasonable. But I'm really not. This guy gives me an awful feeling - he is self-absorbed, controlling and totally self-interested. We've been more or less bankrupted by our incumbent government, and while it's important that we get them out of power, it is equally important that we pay close attention to who we put *in* power. This guy is the last kind of person fit for a position of any kind of authority.
It's not just politicians, though - it happens all the time. People who are charming and personable and outgoing on the outside, and everybody seems to gravitate towards, because all they see is the exterior. Meanwhile, I hang back because I see past the charisma to the selfishness, insecurity or just plain cruelty that lies beneath it. I'm not saying that ALL charming people are like this, of course! But when they are, it *infuriates* me that I seem to be the only one to see it. It doesn't even comfort me when I turn out to be right in my suspicions, which pretty much ALWAYS happens eventually.
It's just so frustrating to have people always think you're some kind of naysayer when you can't help seeing what you do. It makes you feel like a freak.