Like for example, I constantly lick and bite my lips while I'm drawing, like focusing or something.
Also, I probably should blink more lkdfjg.
Sometimes when my mind blanks I sort of go cross eyed. It also happens when I'm reading long texts and lose interest.
usually when i'm drawing i sit curled up in a ball with my head resting on my knees... it's really bad for my back since i'm sitting on my spine haha...
i also turn my head and squint my eyes a lot
i hunch over, i make the same expression as the character i'm drawing, and sometimes i flex my legs and feet, like, completely taut and sticking out in front of me as i do a difficult part, haha.
Link
Pepsi
Assuming the facial expressions of the character I'm drawing without realizing, but that's a pretty common thing.
Also I'll keep my shoulders extremely tense and sit with the worst possible posture and not move for about an hour at a time, no exaggeration. I won't realize it until I finally DO move then I feel a mix between pain and relief, hahahahaha....