A husband and wife surveyor team are working on a new plot of land for a building development. They are standing some ninety or a hundred yards apart when the husband discovers he is missing a tool he needs for something he is working on.
So he whistles to his wife.
When she looks at him, he gestures. He points to his eye, then to his knee, and then pantomimes the motion of turning a wrench.
“I need a wrench,” he says as he gestures, knowing she is too far away to hear him.
She watches his gestures and nods.
Then she gestures back. She points to her eye, then touches her heart, and then touches her crotch.