To get this out of the way: this is a really, really good game, and I respect it a lot. Clam man 1 is a gem if you ask me, and this one is bound to be better.
I only have one problem with the stand-up scene. After telling all three jokes, you are supposed to hit a button on the top left to leave. Instead, I clicked the homepage button after goofing around for a bit, but all the UI on the top left vanished. I stood in front of the audience for 5 minutes with no way to leave the stage. Speaking of awkwardness..
Hopefully you can recreate this and fix the issue.