Oh, fantastic. So this was happening to him now. Oliver's eyes widened in a vaguely panicked way when the man seemed to suffer some kind of personality breakdown, but then slowly reached out to shake his hand. Again. He also happened to take a quick sweeping look up and down the street just in case there was anyone about who might be able to come to his aid when this bloke started trying to eat his shoe or whatever it was he was planning.
Why had he done this? He could be on his way home by now... Stupid Lydia and her stupid having sex with crazy people. This wouldn't have happened in London. Although, thinking about it, he had been best mates with Theo back there so God knew how true that was... Oliver released the hand he was shaking quickly as Reed/not-Reed ducked to pull a bottle of water out of his bag. He didn't really examine thing - was too busy trying to work out an exit strategy - but passed it back quickly.
And then the water was hanging in mid-air. Just hanging there. Oliver was on his feet before he realised it, jumping back and staring down at the calmly seated figure with the hovering stream of clear liquid, feeling his heart pump in his ears as his brain simply flat out refused to process what was happening. Oliver liked numbers and angles and buildings and things that made sense. He did not like this.
"What the fuck?!" he finally managed, almost angrily. Apparently with all sense of manners and any mastery over the English language having gone right out the window with the sight in front of him. "What the... How're you doing that?"