"Well, guess I had to become your nemesis sooner or later," Yamato says, amicably. After a moment, he adds to Cisco: "Although you're eating it, so that makes you a worse villain than me."

Barry's remark about not starving does prompt a tiny smirk and a raised eyebrow from Yamato, just to make it clear that he is, for Barry's sake and to not tip off Cisco, stifling a barrage of jokes and sarcastic comments about Barry and starving.