One scout standing center stage with his head tilted way back.

Second scout walks up to first and looks up into the sky to see what he is looking at.

Continue having scouts come onstage making a line until only one scout is left to enter.

Last scout comes onstage and looks up. Then asks the scout ahead of him.
Last Scout: What are you looking at?

Previous Scout: I don't know.
Then, asks the scout ahead of him, ... all the way up to the first scout.

First Scout: I'm not looking at anything. I just have a stiff neck.