It depends. If I'm annoyed IDGAF I'll amp it up but If I'm somewhere quiet or in class I'll put them low so I can hear a bit and not disturb the ratchets
Yes. That's why I use headphones which you can't hear the sound.
If I wanted people to know what I'm listening to, I would even bother putting my earphones on tbh.
I always get embarrassed that everyone can hear my music and try to turn it down as low as I can until I can't hear it anymore. Now I really don't care, I can listen with the volume all the way up and no one would even bat an eyelash.
I would have a HEART ATTACK if I was in public and all people heard was Beyonce singing "I can't wait till I get home so you can TMCO" or "Lemme Sit this ass on you"