Well, the first step would be to secure the tree in place so that it doesn't fall over if your little one pulls on it. You can do this by tying it to the wall with a sturdy rope or by using a Christmas tree stand that has a built-in anchor. Next, you'll want to make sure there are no small ornaments or decorations that could be a choking hazard or that could break and cause a mess. You can also cover the base of the tree with a protective barrier, like a baby gate or a playpen, to keep your child from getting too close.