Jim btw great work so far. Production quality is great! I only have one suggestion, I am by no means a director but have worked with producing company videos.
I am assuming that this is shot with a single camera. This makes it difficult for the actors to react to the dialog as it happens. If they are not conversing with someone it makes it hard for them to react to the conversation naturally. Which makes their acting look forced or disjointed. Take it for what it is worth I suggest shooting the scenes with both actors in the scene or have someone read the other persons dialog while filming the featured actor so their reactions look more natural. Having them read lines in a scene is putting a lot of pressure on them to try and act natural.