Well there are two ways of doing that, and both have their benefits as well as their draw backs.
You can paint the face for shaping but unless you are really really good at blending it will end up looking like it was painted. This is the faster method and the easier one. The other benefit is if you don't like the look later you can take the paint back off and redo it.
The second method is resculpting the face. It requires more time, patience, and a lot of work. It ends up looking more natural from all angles but it is also permanent once you start. Here is a tutorial on that one,
http://www.dolls-n-daggers.com/Dolls/OO ... inting.phpLike I said there are two ways of doing it, and possibly more that I do not know about. Have fun, and good luck.
The pen is mightier than the sword.... Unless this is a sword fight.