I made a new draft of an animation I asked for feedback on a couple weeks ago. The animation is at https://youtu.be/oj2OTilSpG8 and the previous thread is at WIP Person talking at a table .
This time I used an IK chain that ends at the lower arm instead of at the hand to reduce wobble of the elbow. I also animated the eyes. In some places where the hands and arms move, I add keyframes so the hands move slowly for a bit, then at regular speed, then slowly again. I added some animation of the hands and fingers, but I think it still needs improvement. I have not yet animated facial expressions or subtle movements of the shoulders.