Apparently with me, it's something I do with my jaw. My lips tighten, my chin tenses, and my tongue pushes against my top teeth. People who know me know that's probably a good time to back away. I think I used to do this more than I do now... my friend in high school used to laugh about it, but to be honest, I hadn't thought of it in years and it feels kind of weird to try it now. My "look" has probably evolved since then.
I didn't realise I have the look until my friends told me. They said I have "The Killer Look", the kind of look that makes everybody 'shrink' when I looked at them, because the look is so cold, mysterious, and scary. Like some kind of a warning before I kill someone. LOL
Its like my eyes tried to warn people to not push me more than what they've done to me because that would make me 'explode' and they will be in danger. LOL
Now that I know that I have 'The Look', I use it for my own benefit. LOL
Once a beggar ask me for money in a threatening way. I said no, but he kept pushing me. I dislike to be threatened, so I got furious and gave him 'The Look'. At first he tried to confront my look and saying such creepy things, but I remain silence, calm, and locked him with my look, then a minute later, he gave up and just walk away. Ha! That was fun.
My favorite moment was when I give my friends that look, and they were like "Uh-Oh". LOL
By the way, I chose this avatar because she has my 'The Look'.
I love giving people The Look. I always thought it was an FJ thing, seeing as an ISFJ friend was also extremely proficient in it. However, we only used it on errant males in our social circle, rather than bosses at the office (I reserve an internal eye roll for them ).