What can you do if you have an average body build but too much weight on your face?

I am assuming you are female. That is simply your genes, but thankfully there are things you can do to help your face look slimmer. Go to a good hair stylist and have them style your hair to make your face look narrower. Then go to a good make-up artist and have them teach you how to apply make-up on your face to make your face look slimmer. Even the models you see on magazines and actors have flaws and they are very well covered up by the "artist" the make-up specialist.