Henry almost bolted when he saw Dean approaching, but he couldn't do that without finding out if everyone was okay. Like it or not, he'd have to wait, and then make up some excuse for needing to hurry off that Dean would, hopefully, believe. Yeah, right... Still, he needed to keep up the act. He couldn't have a friend worrying, that just wouldn't do.
So he caught the bottle, chuckling a little at Dean's comment. It sounded forced, but he hoped Dean wouldn't notice. "Tell me about it." He leaned back against the brick wall behind him, crossing his legs at the ankles before raising the bottle of water and taking a quick sip. Then he capped it and passesd it back down to Dean. "Hey, is everybody okay?" All he had to do was find that out, and then he could make up some half-assed excuse and bolt...