If you want to make a small Christmas tree look bigger, there are a few things you can do. First, make sure to choose the right spot for your tree. Try to find a location where it won't be dwarfed by other objects or furniture. Then, add some height with ornaments. Try using tall or vertical-shaped ornaments to make the tree look taller. Finally, use lights to create the illusion of depth. You can wrap the lights around the tree, or place them behind the tree to add dimension. With these tips, your small Christmas tree will look bigger and more festive in no time.