Helping with local car show. Looking for advice/ideas

I work, the registration lanes, every year at the CEMA (Chrysler Employee Motorsport Association) show. We welcome any make/model/year vehicles. I enjoy speaking with everyone I "register" and learn about them and their car. One year I was asked to be a judge, as we were shorthanded, and will never do it again. I didn't feel right "judging" somebody else's vision. I enjoy and appreciate factory original, numbers matching, restomods, etc... I enjoy what makes the owner happy.