nordlead on 02 February 2009
First off, you need the right kind of snow, or it will never work. If it isn't sticky and you can't easily make a snowball then it'll never work.
1) make snowball
2) roll until you can't roll it any more, make sure you change directions so it is round.
3) find friends to help you until as a group you can't roll it any more
4) repeat steps 1-3, but stop early enough so you can lift it
5) repeat steps 1-2, but don't make it so big that it has a fat head
6) get things to decorate face, and a couple sticks for hands. Traditionally you would use coal for eye's mouth, and a carrot for a nose, but you can use whatever you want.
EDIT: that should give you ~6ft snowman but you can always go bigger 
