Before you walk in

The briefing tells you what happens on the day. This is what I wish someone had told me before my own exam.

• Know the format. A theory paper, then practical tasks in the tank with a written report. No surprises on the day means more brain for the questions.
• Pack the paperwork. Logbook, dive medical, photo ID. Check the joining instructions for anything else. Do it the night before, not in the car park.
• Sleep. Divers fail tired. The theory paper punishes a foggy head more than a gap in knowledge.
• Read every question twice. The trap answers are built for people who skim. Underline what the question actually asks before you look at the options.
• In the practical, talk the whole time. Say what you see and every reading you take, as you take it. The examiner marks what you report to surface. Silence is a blank page.
• If you cannot take a reading, say why. A clear reason is worth marks. A blank is worth nothing.