Tinsel is a traditional decoration used to adorn Christmas trees. To put tinsel on a Christmas tree, begin by choosing the type of tinsel you wish to use. There are several varieties of tinsel available, including metallic, plastic, or even natural tinsel made from real plants or plant fibers. Once you've selected the type of tinsel, begin by gently draping the tinsel strands over the branches of the Christmas tree, taking care to avoid creating any knots or tangles. You can also use tinsel to create a layered effect by wrapping it around the tree multiple times.