At first, she doesn't notice who had entered the lounge. She's too busy trying to imagine how she's going to explain this to Bones and Spock when she gets back. Or explain how she'd gotten here since she has no idea what she'd done since she actually hadn't been doing anything stupid before she'd appeared.

Then, she notices someone who looks familiar. It doesn't matter that Jaime's a captain now, she still feels like a cadet in front of Pike. Standing at attention she blurts out a "Sir!" before she even thinks about it. "Admiral... I thought you were on Earth." Why did she have to sound like a kid caught sneaking out after curfew?