Run through it with your buddy, out loud, before every dive. A common mnemonic is BWRAF:
- B — BCD/buoyancy: inflates and deflates, dumps work
- W — Weights: present, secure, releasable
- R — Releases: all buckles and straps known and fastened
- A — Air: gas on, breathe from both regs while watching the gauge, check the mix
- F — Final OK: mask, fins, signals agreed, plan confirmed