Still, there had to be at least one person wondering why Arya and Sansa were kissing in a scene, right?
As Sophie Turner explained, it doesn’t seem like she and Maisie Williams were ever given the reaction they were hoping for with the prank.
Whether that was because people were just confused, apathetic, or realized the two were hoping for a reaction and didn’t want to encourage them is something we didn’t get the answer to.