It is always a pleasure to assist with holiday decorations! To put garland on a Christmas tree, you can start by wrapping it around the tree from the bottom to the top, making sure to overlap the garland so that the tree is evenly covered. You can then tuck the ends of the garland into the branches, or use floral pins to secure it in place. You can also add ornaments, lights, or other decorations to your tree to create a festive look. If you need help with specific garland types or techniques, please don't hesitate to ask!