Really don't care what you do, just don't hold the glove as if you are trying to influence the call.
But if you want to play that game, remember how the umpire may see something. If the catcher moves the glove and then holds it, apparently the catcher didn't think the pitch was in the strike zone, so why should the umpire call the pitch a strike.
Trying to sell a pitch by framing does nothing more than incite others and possibly turn strikes into balls especially if the catcher insists on "framing" strikes.
The smart catchers will catch the damn thing, immediately return it to the pitcher and prepare for the next pitch.
The one thing which you can bet will be influenced by such antics by the catcher is the time the catcher, pitcher and coach spend in the game.
