There was the tiniest of flinches when she reached out to him, but he doesn't pull away. When he saw that she wasn't going to hurt him, he relaxed a little bit. If anything, it wasn't her that was upsetting him. He needed to find a way to convey that to her.

"Uh, water. Yeah?" He smiled a shy, awkward smile at her as he nodded his head. It wasn't her that was being the trigger to him. "Water... Please?"