"Well, it's..." He paused. Did it have a name of some kind?

"I can tell where she is." He rattled off the traits. "And I can feel her emotions, unless she cuts me off. I don't know how to do that." He wasn't terribly emotive though, even in his head.

"And the effects are stronger the closer we are, or I guess, the strength of the emotion."

It both complicated things and made things easier. He could usually tell Eva's motivations.