Thumb, fingers, toes, and wrists.

Yours. All of them.

Only my fingers, which I do all the time. I don't like cracking my other bones, it feels...strange...but I'm accustomed to cracking my fingers

Fingers, some toes, ankle, knees (on occasion), neck, back, and jaw. My girlfriend hates it. But oh well, Ill deal with it when Im 80.

all of them including my MANROD aka Little Big ME aka The chocolate sceptor aka gods grace aka the yogurt factory aka the pants snake aka the staff of dreams aka godzilla lives aka the vadgetastic wanderer aka The leaning tower(My pee always veers to the right) aka the gentle whip aka my junk aka my penis.

I refrenced it more times than i ever have in my life and I'm proud.

Back, neck, little fingers, big toes, jawbone. Can't do jawbone deliberately though.