Answer: stand as close to the exit as possible and be one of the first to leave the room when dismissed. On many ships because most of the lifeboats are midships, you can go to the fore or aft elevators and they are usually pretty clear.
Walk quickly down an uncrowded hallway occupied by staterooms. If there isn't one, go down a deck by stairs and walk to the next elevator station.
If this won't work - just do what everyone else does - tolerate it. It isn't that bad.