Upper Neck: I crack my upper neck by either laying on the ground and interlocking fingers behind my head and pull my skull forward with my chin towards my chest. Or, I am in a sitting position, and use hand to push chin/jaw towards my chest in a slight jerking motion. (this is for the high C1/C2). I also twist my neck both directions.
Upper Back: I have my spouse thrust up and in with two hands while I am lying face down with my arms relaxed to the side and breathing out. Or, I am in a sitting position, and sit cross-legged with my hands pressing down on the ground, and use a forceful pressing motion lifting my shoulders up. This gives a nice deep crack or cracks.
Lower back, I lay on my back and use my fists in the spot that needs to crack and shove up and in on it while I breath out, or see above with partner.
Tail Bone/Cocyx: I sit down and grasp my knees to my chest and gently rock back, until I feel my tail bone pop. This is a very deep satisfying crack.
Ankles: Twist them both directions
Toes: I pop the big toe by twisting it side to side. All of the other toes, I lift up, press down, and twist side to side, getting three pops each.
Wrists: SAme as ankles
Fingers: My lower thumb joint, I grip my hand with opposite hand putting opposite thumb on lower part of popping thumb where it connects to wrist. and press in. I also press down on thumb and pull up on it. Getting three pops. The other four fingers, I pull up and push down on main joint, then push down on second joint, then for top joint, I bend it backwards.
Knees: I am in a sitting position. this one is hard to explain, but basically I hold my leg on ground while twisting knees outwards while stationary.
Pops I would love to know how to do: Any tips on more lower back popping, sternum, and hips?