Helping with local car show. Looking for advice/ideas

Hi all, with my new job I have the opportunity to help out and volunteer with a car show.
Its been going for a few years now and has a good following.
Its a one day event and is on Fathers day Sunday.
I know i will have a blast helping in any capacity but anyone got any advice or ideas in all aspects of it? Been to lots but have never helped.
Thanks
Steve