Quietly, politely, Zacharias listened. He nodded a bit, showing interest because it was interesting what the other was saying. But, in a way, that was the problem. What was he supposed to say in response? He wasn't all that interesting, and what he had to say wasn't, either. The only good things about that was that he knew it already, so he didn't show it on his face, and he also didn't spend the whole time trying to think up some witty, hyper-intelligent thing to say instead of listening to the other man speak. True, he didn't know what to say, but he at least had been listening and watching just in case his brain made some great leap that would allow him to add to the conversation.
For a brief second, Zacharias wondered if the frown was due to something he did or didn't do, like not interrupting and talking over him. But no, it had to do with social expectations, though he wasn't entirely sure if they were in demand at that moment. After all, they'd accidentally bumped into each other, not met with some intention to the meeting. He extended his hand and clasped the one before him, giving a firm squeeze. "You're not an idiot, and I'm Zacharias Smith," he said, giving him a small but friendly smile, quickly running his name through his brain in an attempt to place it with a face. "I think I've seen you, though it is nice to properly make your acquaintance, Hyperion. If you don't mind, what book is your book club currently reading, if there is a current book," he asked, thinking it was probably not to talk about his place of work in a Muggle store just in case while also being interested to know more about Hyperion's book club.