has anyone tried this

I just started messing ariound with blender and i suck. I’ve been trying to make human characters for a game but i have trouble modeling heads. So today i had a thought about moving around vertices in a sphere to form the shape of a head but it comes out like this:

http://img16.exs.cx/img16/5342/myhead14aa.th.jpg
http://img16.exs.cx/img16/8429/myhead22yn.th.jpg

any help is highly appreciated :smiley:

start with the face

and this tut:
https://blenderartists.org/forum/viewtopic.php?t=21066