[Hulk is trying very hard to pay attention to Steve. He knows he should but he has yet to grasp that the monster he's trying to hit isn't "simply very fast moving." It's not until Steve points him in another direction...Once the blue van is destroyed and out of the way he gets the clarification he needs. He smiles unnervingly and nods as he bounds down the street jumping over anything that gets in his way. And only confirms he understood with one word.]