I'm pretty sure that he is irrational...
I can't tell whether he's Ep or Ip, (he's either a mellow former, or higher-energy latter...) He speaks rather quickly, but isn't one to go on-and-on about things. Good at expressing things of an emotional nature and quick to laugh. Curious, easy-going.
He really likes art, design, and photography--very creative. He doesn't like to read, and doesn't seem interested in abstract reasoning--more practical, common-sensical.
Honestly, I can't tell what type he is... Maybe VIing him will give some of you an idea?
Thanks for your help, -Justin