I just saw the button - how did I miss that? I've always been tuned in to Jack's hand on Ennis's shirt there, and Ennis's yummy neck exposed.
What you alll are calling the wink - I see that differently. I see it as a facial tic, that a big smile like that is so rare on Ennis's face, that it's like a spasm of rustiness, his muscles are so unused to that position.