[He does slow down, turning slightly to check that Leo is still there... not that he really needs to see him when he's still rambling away. But he can give him a bit of a break, at least for a little while.

And for a moment, there's a surprisingly genuine grin on Add's face—why wouldn't he be happy about someone praising his life's work? He's proud of what he's done, he wants to share his accomplishments and hear Leo thoughts on them, even if he might not be able to understand it all—

But Leo's probably just faking it.

Another thought rings through Add's head, and he can't shake the feeling that it's true. Why would Leo care about any of that? He's just using Add right now, after all. He's only feigning interest to be polite. He doesn't actually care.

Or maybe he does care, but only because he wants to steal Dynamo for himself. Isn't that all Add's good for anyway?

His expression falters, and when the moment passes Add can only turn forward again and keep moving. Suddenly, the current topic became unappealing...]

Just because you have a simple pea-sized brain doesn't mean everything else is complicated. Because of you, I had to spend an extra hour putting everything back together that time. [as far as anyone can tell what an hour even is, anyway]