now im not a primary catcher but its my secondary but my coaches just always had me catch the ball infront of my chest by sliding my body infront of the ball. by doing that you kinda block the umpire from seeing exactly were it went over the plate so when he looks to see ur glove (say the ball was a little outside) you could move it a lil so it looks like it went over the corner.

Practice in front of a mirror and practice looking ahead with minimal body motions so you won't distract the Pitcher.