It is important to wash your hands properly. First, wet your hands with water. Then, apply enough soap to create a good lather. Rub your hands together, making sure to clean between your fingers and under your nails. Scrub for at least 20 seconds – about the time it takes to sing 'Happy Birthday' twice. Rinse your hands thoroughly with water and dry them with a clean towel or air dry them. Regular hand washing helps prevent the spread of germs like viruses and bacteria, keeping you and others healthy.