Recently, I have been watching MASH, the TV show from the 1970s set in the 1950s. In the show, you frequently see Hawkeye, Trapper, Frank and Henry shaving, or more frequently brushing on shave soap. These are guys (the actors, not the characters) who would have actually been shaving for some time prior to the disposable razor fad. To a man, they seem to use brush strokes when applying their soap. I prefer to use a swirling motion. I am just curious what is most common here.