What is the best way to apply Gallery Glass Liquid Leading?

Leading lines can be drawn free hand or if desired, by following a printed pattern placed under a glass surface, and following the pattern lines. Apply Liquid Leading from the center of the design working outwards, until all pattern lines have been leaded. Keep the nozzle tip ¼” to 1” above the project surface and apply even pressure to create a uniform line of Liquid Leading. Allow the leading line to drape onto the pattern line. Continue until all elements of the design have been outlined. NOTE: Liquid Leading cannot be applied directly to a vertical surface. For vertical application, use Instant Lead or dried lines of Liquid Leading that have been applied to a horizontal surface.