What do we mean by this?
When subjects try to pose, there is often disorder. Posing for the camera involves small slow-paced movements.
A nifty trick is remembering the alphabet, and treating each letter as a different pose:
Start with the letter "A" and place your hand on your forearm.
The camera will snap a row a photos.
Next is the letter "B." Make an adjustment by slightly moving your hand to a higher point on your arm.
The camera will snap.
Now, jump to the letter "C." In another slight movement, turn your chin to the right shoulder.
The camera will then capture this pose. And so forth.
Too many times, subjects will speed through their alphabet. They'll drift from "A" to "Q" to "W" and land on "X." They'll move backwards from "Z" to "M" and randomly land on "F."
The trick is to pace yourself. Slight movements make a noticeable difference on camera. Follow the photographer's guidance when it is time switch poses or try something new.