It sounds like Jake is Isidor's kind of person, too. Something that becomes even more apparent when he reveals he was a marine. Isidor always has time for military people. She understands them better than he does.

Still, Jake reminds him a little of her, which gets a small smile. "Isidor's in security. You should meet her some day."

"So there aren't really pacifists or vegetarians or anything like that?" Perhaps that's a luxury for the modern world. "Do the Na'vi have technology?"