Exaggeration is the animation principle, introduced by the great animation masters Frank thomas and Ollie Johnston.
This principle is used to push the movement further and add more appeal to an action, pose or expression.
*How does it work ?
A person is afraid and is looking backwards So while drawing the pose think about what is he thinking?, What is he feeling and try to push pose as compared to the normal.
You can keep adding the exaggeration until you get satisfied.
A person is watching TV.