Simon was kind of getting tired of meeting people on the street who had all the advice in the world to give. Do this, do that, don't do that. He rolled his eyes slightly and reminded himself he had no obligation to any of these people that he met.
"I can just stop talking if it bothers you," he replied a little testily. "In fact, maybe we should just part ways and you can find your own way." It wasn't generally in his personality to be rude -- he was generally the epitome of politeness. However, being laughed at and then told to talk a certain way?
Well, there was no reason to put up with it. It wasn't like he could stop worrying about River any more than he could stop breathing, and his way of talking was just his way of talking. "Welcome to New York," he said with a glance to Joshua before he turned away.