Here's tip I often use to see how my animation is working. Turn off the sound. By muting the audio it really forces you to focus on the characters acting/emotions. It shouldn't be just the audio that tells us what the characters are saying/thinking it should also be their body language, gestures, facial expressions, etc, etc. Here's a video I made that really showcases this. It goes through some clips from movies/tv, but without any audio. Notice how you still fully understand the emotions the characters are feeling and are still able to follow along with whats going on. If you're working on an animation, try muting it and see if you can still understand what the characters are thinking/feeling...does your animation still read without the audio?