"Uh-huh," Natasha said, giving him a look that very clearly said she didn't believe him for a second. "I know creeping when I see it, Hale. And this is grade-school creeping for someone like you, you're just getting started."
Because she knew a lot more when she saw it, too, wasn't a product of the Red Room for nothing after all. Her observational skills weren't a gift of the time she'd spent working, they were a gift from the Red Room -- you couldn't be your best if you didn't see anything and everything, after all.
"Now, I'm not saying this is a bad thing. I'm just saying that no matter how subtle someone thinks they're being, they're always about four levels less than that, which means this guy is going to figure it out."