Ciro Santilli @cirosantilli 40

obsession with understanding the experiments well, see also Section "How to teach and learn physics"
when doing more mathematical stuff, analogous obsession about starting with a concrete example and then generalizing that into the theory
liked to teach others. At Surely You're Joking, Mr. Feynman for example he mentions that one key problem of the Institute for Advanced Study is that they didn't have to teach, and besides that making you feel useless when were not having new ideas, it is also the case that student's questions often inspire you to look again in some direction which sometimes happens to be profitable
He hated however mentoring others one to one, because almost everyone was too stupid for him
interest in other natural sciences, and also random art and culture (and especially if it involves pretty women)

Some non-Physics related ones, mostly highlighted at Genius: Richard Feynman and Modern Physics by James Gleick (1994):

Feynman was a huge womanizer during a certain period of his life
he hated pomp, going as far as seeming uneducated to some people in the way he spoke, or going out of his way to look like that. This is in stark contrast to "rivals" Murray Gell-Mann and Julian Schwinger, who were posh/snobby.

Even Apple thinks so according to their Think different campaign: www.feynman.com/fun/think-different/

quantum electrodynamics lectures:

Richard Feynman Quantum Electrodynamics Lecture at University of Auckland (1979)

Feynman was apparently seriously interested/amused by computer:

Video "Los Alamos From Below by Richard Feynman (1975)" see description for the human emulator
quantum computers as experiments that are hard to predict outcomes was first attributed to Feynman
www.youtube.com/watch?v=EKWGGDXe5MA Richard Feynman Computer Heuristics Lecture (1986)

Video 1.

Murray Gell-Mann talks about Richard Feynman's intentional anecdote creation

. Source. TODO original interviewer, date and source. Very amusing, he tells how Feynman wouldn't brush his teeth, or purposefully forget to wear jacket and tie when going to the faculty canteen where it was required and so he would use ugly emergency jacket the canteen offered to anyone who had forgotten theirs.

Video 2.

Murray Gell-Mann talks about Feynman's partons by Web of Stories (1997)

Source. Listener is likely this Geoffrey West. Key quote:

Feynman of course, as usual, put it in a form so that the common people could use it, and experimentalists all over the world now thought they understood things because Feynman had put it in such simple language for them.

Two official websites?