It doesn't occur to Natasha that Han's words are genuine because who would be such around someone like her? He's like she is, a mystery wrapped in an enigma of lies. Made to manipulate and to swindle. He doesn't have the earnest obliviousness that the men she's let close to her have had in the past, which isn't a bad thing necessarily.

But it also means she doesn't realize it's not a game. Perhaps it's Natasha who missteps. When he doesn't call her out or step up his game, Natasha watches him for several long seconds before she nods and returns to the task at hand.

"Yeah. This button here is the master power button. You don't generally need to turn it on and off, they'll go into a standby mode automatically if left alone for a specified period of time. But if it dies or locks up and you need to reboot, here's where you do it."