Another area of communication is to do with control. Examiners judge you based on your actions, but they don’t know what you’re thinking, unless you tell them.
If you’re doing something that you may suspect the examiner may have issue with, explain your actions to them. For example, if you’re passing parked car and need to get a little closer to the parked cars than normal, explain to the examiner why your’re doing so. If you’re driving a little slower than what the speed limit is, explain why to the examiner. If you need to overtake a cyclist but decide to hold back, explain why to the examiner.
The point being, is that the examiner then knows you have control of the situation rather than driving along not really knowing what to do.