What's an example of a task that requires knowledge of physical objects to perform?
how do you scratch someones head?

What's an example of a task that requires knowledge of physical objects to perform?
How to remove the seeds from a watermelon completely?

What's an example of a task that requires knowledge of physical objects to perform?
Are you always tripping over your tent lines because you don't see them until you're right there?

What's an example of a task that requires knowledge of physical objects to perform?
Remove wrinkles from clothes without iron.