From Roger's reaction, Marcus guessed that something very bad had almost happened, and through the rambling he supposed that yes, if the thing had actually hit him, it wouldn't have been a very pleasant experience. Feeling vaguely guilty about having worried the younger man, Marcus let Roger lead him through the crowd, trying not to read too much into his reaction. All the same, the physical contact was rather nice, even if it was born of something Marcus didn't quite understand.
Ignoring the sense of loss when Roger finally pulled away, Marcus nodded slightly as he answered, "It's very interesting. And confusing." But, really, those two words could really sum up all of his experiences with anything Muggle-related. He was still looking around and taking in all the sights to be had, albeit more carefully since he would rather this day didn't end with him in the hospital because of something like what had nearly happened with the 'car'.
Marcus took a deep breath as they stopped outside the building that was the tattoo parlor. The parchment with Bryony's drawing felt almost like a weight in his pocket, but he'd gone over this in his mind what felt like a million times, and every time he'd come to the same conclusion. "Yeah, I'm ready," he said, because he was, for both the tattoo itself and everything it signified.