And when you want to allow two people to have a conversation without disturbing the people around them, you use this: https://en.wikipedia.org/wiki/Cone_of_Sile

And when you want to allow two people to have a conversation without disturbing the people around them, you use this: https://en.wikipedia.org/wiki/Cone_of_Silence https://en.wikipedia.org/wiki/Cone_of_Silence