Of course I do Little Neophyte ~ actually all men do this but do not tell their wives about it. To keep it a secret we use the hands to do the measuring. The span (about 4 inches) is the distance across the palm of the hand. The inch is the width of the thumb. six inches is the distance from the tip of the thumb to the tip of the little finger. By moving the hand around a bit a feller can get all of these measurements and the wife never has a clue about whats going on.