Kitty couldn't help the lift of her eyebrow. Honestly, the complicated line sounded what she would have said if someone asked her what she'd been doing prior to starting college and settling there in Chicago. So, she could relate in what was probably a very weird way.
And, of course, he had to continue to rack up the coincidences, and the moment Avengers came out of his mouth the realization dawned on Kitty's face. "Holy crap!" Kitty gestured toward the man, definitely shocked. "You're Dr. Bruce Banner!" The tone wasn't accusatory, but the gesture could have been construed that way, even if it wasn't how she meant it.
"Of course I've heard of you, and the Avengers." Kitty couldn't help but be surprised at the knowledge. That meant she wasn't the only 'hero' in the bunch, and she didn't exactly want to use that word, even in her head.