I started in the 6th grade i was someone else do it and i started wondering how they did it so i kept trying until it worked then i started trying to crack in different directions and then i went on to other joints i would eventually like to stop but i can't seem to because sometimes i don't even notice when i crack them it's like a reflex kind of…i don't know

I can crack:
neck
all my toes- not as frequent in my big toes though
ankles
all my fingers in 3 diff. directions
knees- mostly unintentional
one of my wrists
jaw
elbows- rarely works
thumbs- in 2 diff. directions
so thats like 48

i can only crack one of my wrists but thats only after i sprained it. when i twirl my wrist around it just keeps cracking and it doesnt stop until i stop twirling it its kinda weird but its kinda fun when i get bored

i hardly ever think about where i am when i crack my knuckles but when it comes to cracking my neck i try not to do that in public because that can be a little disgusting to some people but sometimes it just cracks on its own when i tilt my head a certain way.