Assuming coverage by F5, go nowhere. You already have the best angle and view for the predominant tag play, the slap tag heading from fair to foul. If you are too deep, maybe step up to calling depth, but you should start there to begin with, and stay there.
If it is a play where F6 is sneaking behind, then move perpendicular to the base looking across the home plate facing edge of the base (you now facing toward second base), as that is the predominant tag location (the front of the bag) on the F6 pickoff. That position has the added advantage of screening the third base coach.
