Yes, he does that stroking thing whenever Jack says something particularly touching, like "Brokeback got us good." Also I love their casual intimacy in that scene, the way they really seem to listen to each other, the unstated concern in Ennis' "didn't think I'd hear from you again" and "the army didn't get ya?" (And I love the way Jack says, "Nope. Too busted up.") And then I love, sad as it is, the way Ennis' face falls after Jack says "what are we gonna do now?"