The easiest way to do this would be by muting your guest(s) audio either in the Audio Mixer area of your Scene in the bottom left corner of your project space or in the Green Room area in the top left corner.
The easiest way to do this would be by muting your guest(s) audio either in the Audio Mixer area of your Scene in the bottom left corner of your project space or in the Green Room area in the top left corner.