One way あなた can tell, look for the scars on his upper right leg and the scar on left side on his ribs, anouther way あなた can tell is the golden eyes witch あなた can't see, one last way あなた can tell is the burn marks under his eyes, witch if あなた look under his left eye, あなた can see them, I hope these ideas help あなた figure out if it is can-do または not