"Setting the stage" I believe the clue is in sign language. Check this creepy British intel vid on sign language. Clue here I think is not just the creepy music but that the sign language course are referred to as "choosing" to learn the sign language. If one was deaf, they necessarily would have learned signs so this is something else; for the hearing, not the hearing impaired. Recall Michael Obama saying early on that their base would have to learn to speak a new language.
https:// www.bing.com/videos/search?q=sign+language+for+stage&view=detail&mid=F325BC3F791A9843850BF325BC3F791A9843850B&FORM=VIRE
POTUS recent presser today used sign language.