You should start by selecting the type of garland you want to use. Beaded garland comes in a variety of colors and styles, so you can choose one that matches the overall decor of your tree. Once you have chosen the garland, you can begin by laying out the garland around the base of the tree, then working your way up in a circular motion. You can also create loops and twists to add dimension and texture to the tree. Make sure to check for any gaps or spaces, and adjust as needed.