He tapped his fingers to his chin and pulled back in a sign to say thank you before she headed to the kitchen. He had no reason to think it was anything other than a kitchen, so in his mind that's all it was.
He accepted the water with a nod, and took a sip. He didn't ask for a soda; he didn't drink much carbonation. He tended to carry a water bottle with him when he was at the theatre; even though he wasn't talking all that much, the stale theatre air tended to cause a dry throat. So he drank water.
"What's your name? I'm John." He spoke and signed. Even though she seemed to know sign and had signed some to him, doing both was such a habit he did it automatically.