When watching the clip from Snow White, I see that each Dwarf has different movements and reactions to match their character. An example could be between Grumpy and Dopey. Grumpy always walk in an angry way, never really smiles, and has a rough voice when he speaks. Dopey on the other hand is a goofy character. He had his sleeves covering his hands which makes him look goofier. It is also explained that he doesn’t talk because he never tried, this really adds to the goofy character he has.