Lord Zuko is taken aback when he feels the hand on his arm; the boy had quite taken him by surprise, sneaking up on him like that. He looks down at him, frowning in concern... until he breaks out into a chuckle.

"I appreciate your worry for my safety, but it's all right. That dragon is my friend."

Druk, for his part, sits quietly where Zuko had left him, staring at the barrier and looking disgruntled. He doesn't look particularly threatening, at least, and doesn't seem to be paying attention to either of them for the time being.