For doing this. Actually, there should be some sympathy for the Newcastle manager because the ball clearly rolled out for a throw in but the linesman did not appear to be paying attention. Pardew made a more forceful "wake up" gesture than needed.
His subsequent apology will most likely have no effect. The FA is set to come down with a 3 match ban plus a fine. All this comes with a heavy dose of irony as Pardew urged his players to imbibe the Olympic spirit before the match.