"Yeah. You should," or Minami should, anyway. Yuuri is still undecided. Still... it's hard to be too depressed with someone with that level of energy cheering you on, even if Yuuri doesn't feel like he's anywhere near the man Minami seems to think he is. Later, this may well be a reminder of how many people he's let down and disappointed, but right now, it's helpful. He even manages another soft little smile, just for Minami.