The Puppet Speaks
When the puppet speaks, it does not have to move on each and every spoken word. The puppet’s head should not be the only part of its body that moves when it speaks, either. That becomes boring.
Think about how you move when you talk. You move your hands, sometimes your arms, sometimes and your shoulders. You might shift from foot to foot. You nod or shake your head, raise your eyebrows.
Generally, you should move only the puppets lower jaw when it speaks, not its upper lip. When you talk does your upper lip move up and down a lot? Chances are it doesn’t—neither should a puppet’s. Your goal is to provide puppet mouth movements that are as natural as possible.