When The Order Of The Triad is on stage, at first Dr. Orpheus & Jefferson Twilight are wearing orange shirts with their safety logo, and The Alchemist can be seen sitting without one. After that he's wearing the orange shirt too.
When Dr Venture is talking to the kids in the PeopleMover on the PA, he never once pushes the Push To Talk button on the microphone, despite his voice clearly going thru the PA system.