Derek put his hand up, stalling the boy's movements. "You don't have to get up," he replied. "I'm not here for training."
He shut the door behind him, but stayed near the door. It took an effort to not cross his arms over his chest, defensively, but he wanted Stiles to see him as open, approachable. He stuck his hands in his pockets instead.
"...settling back in, okay?" he asked, tentatively.