Start by gathering all of your cake decorating tools. This can include a cake turntable, a variety of icing tips, a coupler, icing bags, a bench scraper, a cake smoother, and a cake comb.
Place your cake on the turntable.
Attach the coupler to an icing tip. Put the coupler in the bottom of an icing bag. Place the tip of the bag in the coupler.
Fill the bag with icing.
Move the bag in a circular motion around the cake to create a base layer of icing.
Use a bench scraper or cake smoother to smooth out the icing and create a flat surface.
Use a cake comb to create texture in the icing.
Use different icing tips to create different designs and effects on the cake.
For a finishing touch, use edible decorations such as sprinkles, fondant cut-outs, or chocolate decorations.