Found this on Reddit. The game of faces, why Arya DOESN’T suck. Wondered what you guys thought?
Foreshadowing: We have quotes from as far back as S6 suggesting that Arya will protect Sansa.
“No one can protect me." – Sansa, S6E9
“You need better guards.” – Arya to Sansa, S7E4
Protecting each other: After LF suggests Sansa use Brienne to intervene in the Arya-Sansa catfight, Sansa sends Brienne away and says that she has trusted guards here already. Sansa is not afraid of Arya, nor Littlefinger, and she doesn’t want the honorable Brienne involved in their lying and schemes.
Arya is trained in stealth: Arya was trained by assassins. She is far too stealthy to let LF know that he is being followed, unless she did this deliberately. In S7E4, Arya walks onto Brienne and Pod sparring just as Brienne says, “Don’t go where your enemy leads you.” In S7E6, the directors deliberately show us Sansa opening and closing a very squeaky door as she goes into Arya’s bedchamber. Yet Arya is able to sneak up on Sansa without a single noise.
Staged fights: When Arya confronts Sansa about the Northern lords talking badly about Jon in S7E5, the door is wide open. Similarly, when Arya confronts Sansa about the letter from S1, Arya projects her voice just as she is reading the letter. It’s almost as if they want someone to hear their fights.
The Game of Faces: In what seems to be the most psychotic Arya scene, Arya basically threatens to cut off Sansa’s face and pretend to be her. The entire scene is Arya playing the Game of Faces, presenting lies as truths. She even says that they are playing! She plays this game when she tells Sansa that she remembers Sansa standing on Ned’s execution stage – Sansa fought and screamed, and Arya knows this. Arya played the game when she told Sansa she would never serve the Lannisters – Arya served as Tywin’s cupbearer. Arya tells Sansa she wonders what it would be like to wear her face and her pretty dresses, to be Lady of Winterfell – we are beaten over the head since S1 that Arya HAS NEVER WANTED ANY OF THESE THINGS. Arya is playing the game of faces, and when she realizes Sansa hasn’t caught on to her lies, she hands her Littlefinger’s dagger, symbolically saying, “I trust you and want you to protect yourself from LF’s lies.”
The third eye: Do we really think there hasn’t been a single off-script scene where Bran tells them, “Hey, uh, LF kinda started the war of the Five Kings by lying about this dagger, betrayed our father, and is essentially the reason our whole family is dead.” We hear crows when LF comes out of the crypts with Jon, when Arya enters LF’s bedchambers, and again when LF and Sansa are talking in S7E6. These noises are very deliberate.