When animating, how your character moves their body can say more then any piece of dialogue.
Our eyes account for 82% of our perceptions, says OnlineUniversities.com. So it’s not surprising that in our communication with others… the messages we send aren’t just with words: Body language accounts for 55% of our of perceived communication. Tone of voice accounts for 38%, while the words we choose only 7%.
You could use the the same piece of dialogue/same words, but completely change the message you communicate based on —the posture of your body, the little things you do with your —hands, arms, body, face, and even your feet—have the power to present you as confident and engaged, or make you seem nervous, or bored, Etc. This why many animation schools preach learning pantomime acting, (the art of conveying emotions, actions, feelings, etc., by means of gesture and facial expression without speech – like Charlie Chaplin or Buster Keaton, Etc.).
So whether your deciding how to animate your next character -or- going on a job interview, in real life, know your body language plays a huge role in how people perceive you, as well as what their body language could be saying to you.