Revue: It is a play (of many acts) consisting of musics, skits and jokes, and is a review on a recent event.
Casting: It is an event to select the performers for a live performance on stage before the actual performance.
Director: It is someone who often work with many other artists (playwright, music composer, etc) to make sure the quality and the quantity of a production. He or she would also alter the production during rehearsal time accordingly.
Punch lines: It is usually the last part of a joke, a comedy skit or a statement. After a set up during the whole time, the joke, sketch or statement usually ends with a word, a sentence or a dialogue that is intended to be funny. It can be considered the climax of a joke.
Emotional range: It refers to the change of emotions or feelings within a character or the entire play.