Start waving and making faces!
From Create Your Own Story
You start flailing your hands like you are having an epileptic seizure. You are making some musical faces at your musicians. Music starts to happen from them, and the audience moans with pleasure. The honey your musicians are making is good honey and it is pleasuring the audience. One of the concertgoers comes up to the stage and starts crying and babbling incoherently. It almost sounds like the music of John Williams is coming out of her mouth.
Oh John Williams. You fucking bastard.
Then, all the audience takes a deep breath and coughs in sync.