"Wow," Marcus said, because that seemed like a lot. "How do people not get lost?" Because there seemed like that many places to go from one place left a lot of room for error. And focusing on that inanity was better than concentrating on the fact that the crowd had forced him to stand a lot closer than he normally would have, especially when Roger casually rearranged himself so that they were no longer touching. As inadvertent as it might have been, Marcus still found himself feeling somehow guilty about it, looking away at the - weirdly unmoving - advertisements adoring the walls of the train car.
He glanced around at the younger man's comment, carefully observing the way everyone was immersed in their own small bubble, even surrounded by other people. That was something he could at least somewhat relate to, though that period of his life wasn't something that Marcus liked to thing about, if he could avoid it. Looking back over when Roger spoke again, he nodded his understanding before following to where the younger man had taken a place near the door.
Getting out of the station apparently proved more of a challenge that getting in, since the protruding thing that blocked the aisle to leave tried to close on him before he was through, and Marcus didn't bother hiding his glare at the thing as he walked away from it. He would have started looking around again once they were outside, except that Roger's question brought, as usual, all of his attention back to the younger man. Smiling back, Marcus answered, "When I have ever turned down food?"