There is a proper way of doing everything. When it comes to rinsing your hands, there is a proper way of doing that as well. You need to pay particular attention to the strokes as well as the number of times you move your hand over one another to thoroughly rinse them. When it’s time to finish, your hands should be upright.
This ensures that any dirt doesn’t fall back on to your finger tips and contaminate them. Rather, the dirt will slide down the arm and evaporate. This ensures that your clean, rinsed hands remain clean and are not contaminated.