Oh, that was weird. He wasn't really used to a salute or anything, so it caught him off-guard, even if it was a fairly informal thing.

"I'm sure we'll be seeing each other again soon enough", he assured the man. If he knew Yusuke, then probably. Of course, Akira without his mask was rather a different personality to people he didn't know that well, so that might be strange. It would be hard not to recognize him, unless he carefully worked around it.

With that, he waved his farewell and headed further up the fire escape, hoping to watch the man from a distance. He had entrusted him with the return of the purse, after all, and he wanted to be sure it'd go through.