Harry shakes his head, but he's smiling still. He'd rather drink out of a glass, but if needs must... He twists off the bottle cap and takes a swig as well. Just two (seeming) young folks day drinking in public straight out of the bottle. Nothing to see here.

He barks a laugh at the weird kid's statement. "I'm not buying you three cakes."

But, seeing that this could be a potential ally, he'll knock the back of his hand against the kid's shoulder, a half-hearted way of offering a handshake.

"I'm Harry.