I was taught to do it 'moist' and that is what I do. One of the best explanations I've read was posted by honedright in a thread years ago. Hold the razors spine in the non dominant hand, lightly touch the moistened thumb pad to the edge and sort of bounce from point to heel so that you don't slice your pad. You do kind of lightly pull the pad on the edge, but for a short distance, lest you open it up inadvertently. The thumb pad that is ....... That is the way I do it. Others may have their own thing.