A recommended activation approach
A useful starting concept is a timed product demonstration with a dedicated content area, rather than asking every visitor to wait for filming. Prepare approved product statements, participant permissions and an ambassador script. If creator participation is part of the concept, define it as a separate deliverable rather than an assumed source of reach.
Production questions to resolve early
Confirm the exact municipality, property owner and production footprint. List tents, staging, power, amplified sound and any proposed filming in the brief. Keep the guest route separate from crew work where practical, and allow time to revise the layout if a reviewing authority or venue requires it.
Location & permission checkpoint
Los Angeles Building and Safety describes a temporary-special-event review for qualifying structures and notes that public-right-of-way events require permission through Public Works, Bureau of Street Services, Street Use Division. Los Angeles Building and Safety event guidance
Requirements can change and depend on the exact site and activity. Confirm current rules with the responsible authority. This is planning guidance, not legal advice or permit approval.