Called strike - Crisp turn & point to right for RHB, left for LHB with verbal.
Exception: R1, F2 coming out of the crouch for a throw down - Face forward and point to the right - all batters.
Swinging Strike - Casual point to right for RHB, left for LHB
Called 3rd Strike - Face forward, right hand extended then "ripping the book".
Third Strike Not Caught - Pumping point to right for all batters while keeping eyes on the ball.
As far as training new umpires, I train with what is required by the Association at the time. Right now, they want all the recruits to us the hammer and face forward, so be it.