Cole makes a conscious effort to open the door and come in with the box he was asked to get. It is an effort, he wants to just appear, but it might startle Lalli startling him could lead to him hurting himself, which was the last thing anyone of them wanted.

"Box." He puts it down on the counter carefully and comes back to Lalli. "I know, it's awful, but you'll feel better if you do what Cho asks, not just get better. It won't feel as terrible."