The naked man replies, "I'm finding out the time – it is 12:15."

The cowboy looks at his watch and thinks, "Wow, it really is 12:15."

The cowboy continues and sees another Native American lying naked with a hard-on. He asks, "What are you doing?"

The naked man replies, "I'm seeing what time it is -- it is 3:15."

The cowboy looks at his watch and that is the correct time. The cowboy continues and finds a third Native American lying naked on the ground, masturbating.

The cowboy asks what he's doing and he replies, "I'm winding my watch."