A lot of good feedback - there's always room for improvement, and agreed that it tends to be more prevalent with newbies (which can partially be addressed with clear direction, as some of you have mentioned).
One thing that do I want to mention though (since it's a challenge but rarely gets discussed) is that depending on the camera + setup when shooting VR, there is often no way to "live view" the footage in VR, or even a good way to watch footage that was already shot, at least not in a remotely timely manner.
The directors are most often watching the live feed on 2d displays, which makes it difficult to catch when an actress is having issues with eye contact.