When you tear paper craft or scrapbooking paper toward you, it leaves a contrasting white edge. When you tear paper away from you, it leaves the same color edge. Use your fingers to direct the shapes you're tearing. Use a ruler edge for a perfectly straight tear. To tear mulberry papers in the exact way you want, wet a paintbrush with water and paint along the line you want. Then tear along the wet line you've painted, creating the exact shape you want. Wait until the watered edge dries before using in your project, however.