Like you’ve just been with these people for so long you’re like… fuck it who care if they judge me, they pronably got so used to my weirdness anyways…
But strangers… better keep quiet… don’t want them to have the image of: “oh that weird guy/gal that sings to himself/herself all the time” be permanently in their head…
Nope, the dynamic in my family is most of us need some polite distance from each other and wouldn’t be comfortable doing that.