Ride conservatively:
Too many observations is better than too few.
A minor for hesitancy is better than a fail for making another road user use their brakes.
A minor for going under the speed limit is better than a fail for going over it.
A minor for a slightly long emergency stop is better than a fail for a skid.
You get the idea
That said, show that you're not afraid to get up to 70 on a dual carriageway, don't be afraid to overtake, or use the bike's acceleration to make progress.
If the radio starts breaking up and you're not 100% sure of what he said, ride on. If he wanted you to pull over, he'll ask again, if you missed a turn, he'll just get you to turn round etc. Unless you're patently pretending not to hear things you don't want to do, he won't penalise you for it.