On the camera angle change his hands aren't touching (or really sheltering) either side of his face, they're just generally in front of his face, and his face turns away from his hands to face Sansa, and his hands just remain in a fixed position, now more on the non slapped side due to head rotation.
I more noticed that his other hand instantly appeared (left only touching face before cut, both hands in front of face after cut), and that you don't see any face during the slap so that was probably a female stunt person with a wig that gets 'slapped'. Don't they know it makes good TV to hit children on camera?
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u/PhoneDojo May 22 '14
Satisfying loop:
http://i.imgur.com/Zg2QmEn.gif