Fred frowned, a little disappointed. He had at least expected more than that. And for a second he considered letting it drop, but it had been months since he'd seen Percy - since anyone had seen him, really, even their dad who worked in the same bloody building - and ... well, he didn't want to let it drop.
So he did what anyone might have expected him to - he got up and followed him. At first just let him walk, and he walked behind - gaining until he was just behind him - then he started in.
"Sure you're not lost? Ministry's the other way. Seeing as you're living there and what not, and this way's the real world where people interact and have lives and such, you're definitely headed into Percy-uncharted territory."