Rex was doing some window shopping, distracted by the gadgets displayed in one of the shops when Martha spoke. He blinked and turned to her, startled for a moment (he really needed to get used to seeing people from the Barge here), then offered a practiced smile of his own. "Martha. Hi." He ran a hand through his hair, looking around quickly. "It's such a big city, I wasn't expecting to run into someone from my... cohort."