DAN describes a safety briefing as more than a list of attractions. It should cover entry and exit. It should also cover essential underwater signals, who leads, and responses to a lost buddy or low-air problem.
DAN also recommends concise, focused briefings because noise, motion, heat and anticipation can reduce attention. A shorter briefing is not a weaker briefing when it covers the information your group needs for that site.
PADI’s hand-signal guidance describes signals for OK, ascent, descent, stop, trouble equalising, help, out of air and air checks. It also cautions that regional differences exist. Review the actual signals with your buddy.
Use teach-back rather than a yes-or-no question. Point to the exit and ask the learner to identify it. Give a signal and ask for the response. Ask the buddy pair to show how they will get attention and end the dive.
If a translation is needed, pause after each safety point. The interpreter should translate the instructor’s current plan, not replace the instructor’s responsibility. Ask again when weather, current or site conditions change.