2010 Rules book;
7-1-3-a-3 No player of the offensive team shall be in or beyond the neutral zone
after the snapper touches or simulates (hand at or below his knees)
touching the ball [Exceptions: (1) The snapper (Rule 7-1-3-b-3);
(2) Substitutes and departing players; and (3) offensive players in a
scrimmage kick formation who, after the snapper touches the ball,
point at opponents and break the neutral zone with their hand(s)] [S7
and S19].
2010 Rules book;
7-1-3-a-4-b
(b) A shift or movement that simulates the beginning of a play.
This includes the snapper who, after assuming a position for the
succeeding snap and touching or simulating (hand at or below
his knees) touching the ball, moves to another position.