Keep your eyes off the ball to minimise any chance of edging it. This batsman is looking the opposite way to eliminate even the slightest possibility that he might catch sight of the ball. The merest glimpse could potentially cause him to play for it.
Better still he has released the bat as a second countermeasure against bat striking ball. With no control over his bat, it is physically impossible for him to play the ball deliberately.
A further boon is that in the absence of contact with the bat, he can no longer be caught off either of his gloves.
Any youngster could learn a thing or two from this.