"Oh," he says, turning a little pink. He rubs the back of his neck, and offers an apologetic smile. "Of course, Seven."

Natasha has given him the crash course on 'modern' manners, so he knows that terms such as 'ma'am' and 'sweetheart' have fallen into disrepute -- not that he would ever use the latter himself. Not with someone who wasn't, uh, his sweetheart. He clears his throat. "You can call me Steve. Where are you from?"