That's a good question.
Sometimes it comes out in the things that other people write about them, or things their references say, but also we ask them. We ask about their experience working collaboratively. Those who sit on appellate courts have that experience. Those who have sat on trial courts.... A trial court judge is God in the courtroom, so it's a whole different culture.
We come out and ask them, get their points of view, and ask them for their experience, because it's a very important issue.