It is important to add a real-world touch to your animated videos. That is why most of the animation services record the facial expression of the voice-over artist so the 2D animator can get help and work with the real expressions. It is a great tip that will ease your first step. Let’s assume if this example is not suitable for you then you can use a mirror and speak those words in slow motion, record the facial expression and lips movement to apply in your character. That is how you can get the real expression just right for your characters.