Deformers is a simple tool that can help animate emotions and movement. My favorite deformer is the bend tool. The bend tool can make an object like a cylinder turn into a letter C or a complete circle. The sine tool helps animators create curves in their animations. The flare tool as it says helps flare object (you can actually make a vase with it). The wave tool makes waves onto the figure (duh) and you can set how big you want it as well.