actually id like to complain

nah everyhting u guys do is helpfull but when i try to model it im getting weird faces appearing from nowhere..eg on the bottom of the feet and when i try changing the chest etc it comes out like a circle..im confused..

i tried again from scratch doing the exact same thing as the instructer and this time when i tried to extrude the torso i got some weird looking shapes..(and i have the keep faces togtehr tool selected)

any ideas what could be happening?