What dose an ambassador role look like?

Advise on school fate stall Tomorrow Wednesday the 25th of June I’m doing f a school fate iv never done this before. I have a branded table cloth banner Leaflets a jot form to get peoples details and once they put their details in they will entered into a raffle to win a 2 week free trial of a class or their choice and another price is a month free of one class. I have a show reel playing and photos displayed on the stall And I have 3 performances happening at the event also. Any other advise or info Also I’m happy to share how it goes for me and what worked and what I would do better or the next event on Thursday xx