Small tears in your wallpaper are repairable! Wallpaper scraps can be used as a patch. Begin by removing any rough edges around the tear with a utility knife. Then cut a piece of wallpaper slightly bigger than the area you are trying to repair, make sure the pattern matches exactly, and cover the torn area with the patch. Use your knife to cut out a shape through the patch piece and the wallpaper underneath. The shape should be larger than the torn area. Now remove the underneath wallpaper that was cut out by your new shape. Apply paste to or activate the adhesive on the patch and fit it into the shape cut out of the wallpaper. Wipe away excess adhesive and smooth the wallpaper surface.