Dont say anything and sacrifice other people's time for your trial and error learning process. For the first half of the fight, it's on the rest of the party to perform before it's your turn to really act on the stage. Even then it's a minor part. What's important is how shiny your costume is. If the party gets jeered off the stage before the 2nd half, then it's not your problem and you still get to experience it.

I'm serious here.