The lunch interview is supposed to be mild and mostly for selling on Amazon and the team (e.g. you talking). Trying to do a real interview where you drill in is

The lunch interview is supposed to be mild and mostly for selling on Amazon and the team (e.g. you talking). Trying to do a real interview where you drill in is a mistake some people make. You are there to have lunch and make sure the candidate has a good time, there is plenty of other feedback from the real interviews that you shouldn't feel the need to add to that body of evidence.