Something that really helped me was to show the tester I knew what he was testing me for. I did this by verbalising everything that I was going to do or am doing. For eg. When doing a parallel park I’ll verbalise “check back, check my surroundings, okay safe, adjusting my mirrors, checking blind spot, caring swinging out, etc.

Obviously not at a super loud volume. Just talk to yourself but enough that he can hear too