First time Tailgating

Hi everyone! I’ve been to several Texans games but will be tailgating tomorrow for the first time at the Texans vs Lions game.

With that being said can someone explain the tailgate situation? Is there a specific spot I have to be at? Or what do I do once I am in? I don’t have my own tent to set up so what do people do once they are there

Sorry for the ignorance just don’t want to go out there and be lost tomorrow, thank you for any advice that can be provided 🙂