You sign up for the mic, but don't have an instrument so you'll have to rely on doing some comedy.
After only 10 minutes it's your turn to get on stage. You hurry up to the mic in a way that somehow alerts everyone's subconscious that you are not nor have ever been cool. You debate between starting with a killer one liner that you thought of five years ago, or a an off-the-cuff joke about the local stereotypes.
What will you do?