No... you can move your head, but not in a jerking manner meant to draw a defender offsides... kinda like the way a quarterback can't simulate receiving the snap by backing off really fast...
Yeah...I saw that drawing move from the center all though the first half. It suckered us...but some of the offside calls seemed questionable. Makes me wonder if the refs weren't being a bit too over-proetctive of Tebow in some cases. I'm not slitting my wrist over this one - we lost to the number 1 teamm and a hell of a QB. Our defense looked great and the offense needs work..so what? We'll deal with it and keep on truckin.