Characters or designs are often outlined first, then piped in with stars or zigzags. Outlines can also be used for facial features, too.
Fit the decorating bag with tip 3 and fill 1/2 full with thin consistency icing. Hold the decorating bag 45° at 3:00 (9:00 for left-handers), the tip should be slightly above surface.
Touch tip to surface. Lift tip slightly, squeeze, guide tip along surface.
Stop squeezing, touch tip to surface. Pull away.