We've all heard of the elevator pitch. A short, concise description of your work or in regard to writers, our manuscript. It's important that you have one just in case an opportunity should present itself. But in case you are caught unprepared, and actually in an elevator, here are a few short suggestions to make yourself memorable.
When you get off the elevator, whisper to the others who stayed on, "I'd get off the elevator NOW if I were you."
Hum the "Mission Impossible" theme, speak into your lapel and say "Right, Jim".
Put a cardboard box in the corner; when someone gets on ask them if they can hear ticking.
Open your purse slightly and say, "Do you have enough air in there?"
Tell one of the other passengers that you're sorry, but you're going to have to let him go.
Wear a puppet on your hand and talk to other passengers "through" it.
Announce in a demonic voice: "I must find a more suitable host body."
I hope you find these suggestions helpful. At the very least, it will liven up your day...and someone else's.