I'm a girl who fits the "lazy genius" stereotype pretty well. I don't put any effort into my scholastic efforts, but still manage to get good marks by remembering what my teachers say.
SW
Welcome to the party. I'd wager a fair bit that my laziness generates from an assortment of avenues, namely, as you mentioned, an ease in memorization of relevant information and perhaps, overstimulation of the brain, attributing to little, if any, restful sleep.
In other news, I've found INTPs to be highly emotional, and while some sources recognize this (though sparing much detail), others err on the side of the "stolid, unarosed, cold" INTP. Yes, yes, I often sell this image well (and was labeled Schizoid in my younger years), but vulnerability and discomfort are the real devils. Displaying emotion is not the most natural thing for our type, and in a world where that is the norm for many of our fellows, the result can be terribly distasteful, further inhibiting any desire to contribute, just as us spewing out our latest time theory conspectus can make the heads of the more sensing types implode. For most of my life, I assumed rationalization could keep the emotions at bay, what I saw as a leg-up on all of those feeling wonks, an ataraxia of sorts. But they stayed alive and well. And my, my, my, weren't they primitive and enigmatic and opposed to every cogent artillery I could direct their way.
The day I stumbled upon my sine qua non, my dearest and nearest best friend was the day I learned that emotions can be an asset when properly acknowledged/defused/recognized rather than tethered to a pipe in the basement of some Romanian hostel (or other places on the list of least desirable to visit). She and I, we struggled with opposing weaknesses, and I suppose through mutual rapport and complementary perspectives, a gradual strengthening manifested within us both. This is not to say I've taken up the INFP shield (or tissue), but I've learned to put my emotions to good use in conjunction with my preset strengths (e.g. crying without rationale and allowing emotions to roll out as they will is an immensely helpful memory to store for the time when someone you care about does so, and the immediate action is usually to fix or leave, but rather you can sit there, and not understand their reaction, but understand what that feels like. Usually, a small bit of time spent empathizing opens the receptive doors to some good ol' rational advice. Mothers love it).
In the end, I wouldn't necessarily call feeling an unusual character trait of INTPS, more or less your uncle no one ever mentions because when his mother had an affair with her brother-in-law, and the hooked nose and overly zealous temperament brought the truth to light, your uncle, being at the tender age of 45, drank a bottle of Wild Turkey and wound up in a cell after chasing children around a campsite screaming, "I am the Sandman!" Or, as my grandmother when brought up, "None of your damn business."
So, here are a few personal ones of mine they may be considered unorthodox for an INTP:
-I become extremely bombastic while watching hockey, a bone fide hellion.
-There are a handful of people that do not ever drain me. Though they also can sit in a room for an entire day without talking or eating in an attempt to develop some intellectual or creative pursuit.
-I train MMA and readily display this whenever men are heinously disrespectful towards women in bars.
-I've heard my default facial expression is also a smile, so the above action is usually startling.
. And I sometimes use it as a way to say hello to people that are very far away (very far away being like... 8 feet) so that I don't have to speak or move my arms or otherwise call attention to myself. My friends have learned to respond equally, but new acquaintances get all confused, and sometimes even think I'm rude...
