. Remove the strip of cloth from the soap solution and run your fingers down the cloth to remove the excess soap. Stretch the cloth between your hands and slowly pull the soapy cloth across the rim of the bowl. The goal is to create a soap film that stretches across the entire bowl. It also helps to dip your fingers in some water and wet the rim of the bowl before you start. Getting the soap film to stretch across the rim of the bowl can take a little practice until you get the technique mastered. If all else fails, try cutting a new strip of cloth from a different type of fabric (an old T-shirt works well), or change the soap solution by adding some more water.