A fake Christmas tree can be a great alternative to a real tree, but sometimes it may not look as full as you'd like. Here are a few tips to help make your fake Christmas tree look fuller: 1. Use lights - Adding lights to your fake tree can help create the illusion of fullness. Choose lights that are warm and cozy, and wrap them around the tree to help it appear fuller. 2. Use branches - Use branches to fill in any empty spaces. Branches can be placed in between the branches of the tree to create a fuller look. 3. Use ornaments - Adding ornaments to your fake tree