I wouldn't put too much stock in saying things like, "Wow, he has the nose of an INTp, he must be one!" The eyes, yes, they can often tell more. Intuitives have more of a wandering gaze, STs have that "eagle-eye" which makes them look like they are concentrating on one specific point in space, introverts have their attention more sucked in to their head, etc...

Sorry, I don't have time now but I'll respond on the other things later... :/