Same here; I've also developed a habit of flipping the bird (middle finger) on my monitor whenever I'm frustrated and miss a note/fail a song, in a way to release the stress.
Dm1321 wrote:I don't think it's uncommon to start thinking about other stuff in osu!, so instead I'll list my other habit :
I start tilting my head to the left the more I play. It's pretty noticeable. The harder the song, the more the tilt.