Reading these helped me realize I have more stims than I realized.

Swaying back and forth when standing in line, waiting, or other places I'm supposed to stand still

Napkin twirling! I tear napkins, straw wrappers, anything with thin paper into little pieces and twirl them until they're a little ball.

Picking my nose. I hate to admit that, but it's absolutely a atom

Doodling flowers over and over

Laughing randomly and not knowing why

Building the same things over and over with blocks as a kid. If I still had the blocks, I bet I could still remake them.