Weird Tics - the strange stuff we do without realizing it

I've wanted to make bird sounds my entire life. I used to be able to do a good pigeon coo when I was much younger, but not anymore.

Teach me how to bird, Mythee. Teach me how to bird.

My tics: Cracking joints. I've gotten the "Oh my god" reaction too. Fiddling with pens. Sometimes straight-up tossing them in the air and catching them. Stuttering, though it comes and goes. I guess that doesn't really count.