From the little others have told me, it seems like I give off the impression of being sweet/innocent/harmless (much to my chagrin) and apparently bubbly and super positive (I've actually heard the thing about me having an extremely positive aura more than anything else, which always makes me think "wtf?" because internally, I tend towards being negative more often than not). I would not be surprised if someone out there thought I was cold and snobby, because I am really reserved and withdrawn, and tend to fail utterly at reciprocating social overtures in an appropriate manner. But no one has ever told me that, so maybe not.
I only know two other confirmed INFPs in RL, both women, and I only met them recently. Having met them, I can see why some people think INFPs are intimidating. =P I had heard all about how INFPs can come across as Ts, but I was not really prepared for just how much this is true! One of these INFPs is very outspoken/opinionated and shows almost no emotional expression when talking. The other has a slightly softer vibe, but is still pretty snarky/sarcastic (much moreso than her INTP husband) and comes across as very collected. Even though I know they are INFPs and have even spoken with them about their social anxiety/insecurities/etc., it's still hard for me to imagine that there could be anything insecure beneath their cool exteriors.
I don't mean any of that as a criticism. I am just really surprised and fascinated by how fellow INFPs actually come across IRL. It seems so different from the way I feel on the inside, and I have to wonder whether I give off the same impression these women do and just don't know it. I kind of hope I do, haha ... I want to be intimidating, too, dangit! Although that's probably a lost cause ... a stranger on a bus a few months ago told me I seem "like a flower, normal and sweet."
(On a side note, I wonder if this intimidating/sweet dichotomy is the difference between INFPs who are more "Fi flavored" and those who are more "Ne flavored" when communicating?)