cracking my fingers a lot also my left hand's thumb's bone is a bit misplaced so I can move it in a weird way others can't. many people told me to stop doing that because it can seriously injure it in the future, but I'm too addicted to doing that...
Agree with the people above lol I crack my fingers but I don't bite my nails, I tear them apart. I know it sounds weird but, with the help of other fingers' nails, I go to the top left/right side of any nail I want to cut and start tearing away. I've even done it on my feet and I had to go to a specialist last year because my nail, from being cut so badly, had gone into the skin. I only cut the "white part" of the nail though, the "pink part" is the one that you must not tear away.
I bite my nails like a lot. I'm trying really hard to stop it right now by putting nail polish and such. I also always have a hair tie on my wrist so whenever I find myself biting my nails without realizing it I'll 'snap' the hair tie on my wrist..
Doing things symmetrically. No, this isn't a DTK joke; I legitimate have diagnosed OCD for numerical symmetry. If I blink only one eye, I have to blink the other, and then again in reverse for symmetrical value balance. If I drum my fingers on one hand, I have to on the other, in the same order, and then reverse for both in reversed order for symmetry. If I'm drawing a picture, I will go out of my way and take ten times longer for symmetry. It doesn't interfere with my social life, but it's annoying. Also, that's part of why my avatar was DTK for a while.
Tie a bandage with a tissue in it. It helped me with my nail biting addiction. 9-10 years of biting my nails and the second I broke my finger I stopped.
I do like the EXACT same thing XD. I hate it when I like trip and take two steps with my left foot, I have to hop twice on my right before walking again ._. Same with clicking pens .-.
I crack my fingers and bite my nails o-o And I also let my "friends" hurt me and without them even apologizing I let them back into my life without a problem ._. And I have a habit of worrying about everything