It's not hard to notice the way Shiro lights up like one of those Christmas trees when they meet up with Byleth. Armin has a pretty keen eye for detail, but really, he doesn't need it here. And honestly, it's good to see Shiro this happy. He deserves it, and it is unfortunate that this world hasn't always been able to grant him that.

Which means that whatever kind of person Byleth will end up being, Armin, for one, is already inclined to like him based just on how happy he makes Shiro. But then again, he wouldn't be making Shiro this happy if he wasn't a nice person, right?

Armin accepts the short bow and tries to mirror it in a slightly less confident manner. He comes from a place where they shake hands, but if this is the way people greet each other where Byleth is from, he's willing to adapt. "It's very nice to meet you. I have to say, I've been looking forward to this. It's been a while since someone made Shiro this giddy."