There are many different ways to put tinsel on a Christmas tree, but here's a simple method:
1. Start at the top of the tree and work your way down.
2. Hold the tinsel at the top and gently pull it down the branch, making sure to cover the whole branch.
3. Once you've reached the end of the branch, tuck the end of the tinsel under the next branch to secure it in place.
4. Repeat this process with each branch until the whole tree is covered in tinsel.