You know what I think is really cool about language (English in this case)? It’s the way you can express “I don’t know” without opening your mouth. All you have to do is hum a low note, a high note, then another lower note. The same goes for yes and no. Does anyone know what this is called?
to me, a person’s favourite white noise is really interesting fact about them. is it a hot tub, ocean waves, rain, a fan, a shower, a humidifier, highway traffic, a thunderstorm?