Make a small snowball in your hands. Roll it on the snowy ground until it becomes big. Tap it firm. Make another, smaller snowball and a third even smaller. Put them on top of each other - the biggest first, then the middle-size-ball and the smallest ball on top. Mark eyes and mouth with stones, put a carrot as a nose. Tree branches make nice arms. If it's a cold day, you may wanna put a scarf on your snowman.