When I was in Paris for the Gobelins summer school, we were lucky enough to attend Kyle Balda's 3D masterclass. He has posted an "Acting Tutorial highlights" clip so you can get a taste of the process he uses to animate in 3D.
2nd year animators take note on what Kyle says about the root control of a character. It is something we have been covering in the walk cycle exercise. See how animating from the root can be used as the foundation of any body movement, be it in locomotion or acting.
[*Transform hippy metaphor huzzah!*] A tree can't sway without a solid root. Nor can you expect to move an audience without good animation at the core of your character. Always think of the root.