i've never really been to one before to be honest. i'm gonna mask up and dress plainly and all that. i still don't know what to expect or if there's any social protocols to be aware of while going to these. i'm autistic and very nervous please advise 
Don’t bring your phone, use different devices to record. Don’t drive there, or if you do, make sure the driver is a separate person and have them not participate and drive off somewhere safe
This ^
Phones are a liability, don't get tracked. Tell someone you trust you will be going. Never take a plea deal if you get arrested. Even if it's a public defender it's better to have them talk to the cops. "Loose lips sink ships"