Start at the side of your dominant hand, keeping the skin stretched behind the razor with the other hand, which you put over the head. First, place the blade flat on the skin, then raise the back a little and push the razor forwards, without pressure, and with a slight scything movement. The latter takes advantage of the microserrations on the edge, improving effectiveness. A dull razor will need a much steeper angle to shave. You can choose the cutting angle too great, but not too small. Always follow the razor with the stretching hand, because the point of maximum tension is just behind the razor. Then proceed with the cheek, always stretching. Not stretching is the second most important cause of bleeding, after dullness.