When visitors come to our office, one of the first things they notice is how quiet it is. Naturally, one of the first questions they ask is “how do you keep it so quiet?”
My answer is “library rules.”
Everyone knows how to behave in a library. You keep quiet or whisper. You respect people’s personal space. You don’t interrupt people who are reading or working, learning or studying. And if you need to have a full-volume conversation, you hit a private room.
So if you want to keep things quiet at the office, treat it like a library. It works surprisingly well.