Simon hadn't exactly not noticed the captain's entrance, it was hard not to, but he wasn't exactly jumping up to greet the man either. Slowly Simon turned his attention from the cup o' soupy goodness to the captain and his pilfered food.
"Yes, I'm sure someone has now learned that leaving his food behind and unguarded is a good way to not have it anymore." There was a slight head tilt to said victim, but Simon didn't do anything to flag down any authority types to rectify the situation. Back to Mal.
"And, they've got some food that's actually quite edible. Here." Simon nudged the cup towards the captain, not at all bothered with the whole sharing aspect of the action. "It's just soup, not too grainy or salty. It's better than Mmm. Mmm. Good, or that's what the container says." A quick tap of the side to the words.
"When did you get here, Captain?" He wasn't even sure from what time this Malcolm Reynolds was; Simon hadn't gone as far as the others it seemed - he'd been brought to the city just after the infamous and rather yappy beagle operation. In other words, the two weren't on ultra friendly terms; at least not in Simon's time line.