…jump.
> Take a running jump off the boat, close your eyes, and think very hard about waking up.
> Yes, jump! The fall will jolt you awake! Like when you're just about to fall asleep but suddenly feel like you're falling!
Seconding [strike]jumping[/strike] leap of faith. Look back up at the boat to see what happens.
Notes
Should the subtitle be "In which jaws are opened", or is it talking about opening something called an "in jaw"?
Yes, yes it should. Merci!