References are more important than interviews.
Interviews are just a chemistry check after the references.
The Aura Test looks for your gut reaction during the first 30 seconds of the interview. This doesn't give the candidate a chance to schmooze you into liking him.
"Tell me something that's true that no one agrees with you on?"
This tests for original thinking and courage.
"Most people think originality is easy but I think it's really hard and when you find it it is very valuable."
Interesting short video conversation: