The etiquette for deplaning in the most efficient and respectful manner can be boiled down to a few simple points:
- Gather your belongings ahead of time so you're ready to move when given the opportunity.
- Take your bags down without blocking traffic in the aisle. Do it either while standing at the aisle seat, or from the aisle if the aisle isn't moving.
- Don't stop in the aisle to wait for people who aren't ready. That creates more delays. But...
- Don't push or cut off people who are trying to move. That's hostile and doesn't help empty the aircraft any faster.