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…
If the music is loud and I know the song, I’m singing it. Then again I don’t exactly have a reputation for being normal so ya know