My common habit when playing music

[Ja Sa Bong]

I make use of earphones whenever I'm playing music to listen. It's once in a while I play music outloud because I enjoy listening using earphones. But whenever I have my earphones on, I will sing along to the song and I get loud when doing that without knowing. It's when I'm tapped by someone to tell me to keep it down, then I will realize I have been very loud.