Tip your head to the left. Now to the right. Now forward. Now back. Turn left. Turn right. Isolate in a circle.
Your neck is just one point of articulation. Too complicated to be considered a joint, but we can move it in infinite increments. If we simplify, say left-to-right has five discrete positions, front-to-back has four, and so on, and then move to shoulders: up, down, forward, backward, resting, five time five for the other shoulder, times the neck positions reaches hundreds of variations. Now do this for every joint, every point of motion or position.
The result is trillions of unique postures. More than stars in the galaxy, more than cells in your body. This is why it can be easy to identify a friend at a distance, even when their face isn’t visible. Their posture is unique in all of humanity.
Now consider movement!
When building a character, focusing on body posture and movement quickly creates a uniqueness that gives the character life. Practice in a mirror, or with a friend. Ask, how would my character stand? How would they move? What, in their history, might affect how they hold and use their body?
Haunted Spoons 