Ah, you'd be surprised by how realistic fake trees can look these days. But let's say you have a fake tree and you want to add some extra holiday cheer. Here's what you could do: start by draping tinsel around the tree. Tinsel adds a classic touch and can also help cover up any gaps or empty spaces. You could also string lights around the tree to add a warm glow. Lastly, top it off with a festive tree topper like an angel or a star. Voila, your tree is ready for Christmas!