Ino: My family owns a flower shop and I've been serving people there since I was little. When I see someone's hand, I can tell what kind of work they do. Carpenter's hands are much rougher than this with scrapes and cuts and a trap ninja's hand would never be that squeaky clean.
Sakura: And what does that mean?
Hinata: May I take a look? Byakugan! I thought so, there's no trace of a developed chakra network. This man has never infused his chakra.
Hinata: And I even heard the medics talking outside. Even they have doubts about his identity.