The lights will drop and we ask you to close your eyes and imagine yourself sitting beside an old vacuum tube receiver.
Story is so important here.
Many improvisers find it hard to work in the dark. So many physical offers are lost that it can be quite confusing just listening to voices and sound effects. The genre is best exploited by explaining actions, and carrying out things that just cannot be done on stage. Swinging across crevasses, jumping from buildings, riding the wings of planes, etc. Listening is so important in this scene.