The mask certainly tells him something about how the guy seems to want to be viewed, but Joe hasn't been anything but reasonable so far, and Steve's going to trust what a person says and does over how they look. He's curious, but that can come later - first, they need to shore up the diner.

"Got it." He grabs one side, as instructed, and waits until the other is ready to lift before taking their weight and opting to take the more awkward position of walking backwards toward the windows. At least with the shield at his back, he's the better protected of the two of them if something comes barreling through. "Never seen a storm like this, but I assume we should expect the worst - and then some."