Gor flushed a little when she caught him staring. She had, in truth, startled him quite badly. His eyes skittered immediately away. "S-s-sorry," he stammered in response. He hadn't even realized he'd been staring. "I...I-it..." Well... "You're a girl."
He was pretty certain she knew this already, which made him flush a little more colorfully.
"S-s-sorry. Again. It j-just surprised me." Time for a distraction. "Oh, uh, n-n-neat computer."