"It's no problem," Yamato replies. He doesn't smile back, if only because he's well aware that he can't pull off a reassuring or friendly smile to save his life, but he inclines his head a little.

Once Caitlin's gone, he reaches around to rub his arm slightly, as his posture eases up a little into something a little less tense.

After a moment's pause, he pulls a meal bar out of the rucksack he brought and tosses it at Barry's head. "Chew on that while you work. I'll monitor the city and let you know if anything happens."