Ruby blinks, and her head instinctively snaps in a few directions to take in their surroundings before even fully settling back on Erin, at which point it takes just about every ounce of her restraint to not blurt out 'you have eyes!'. Instead, she ends up staring with increasingly widening eyes for a straight ten seconds before snapping out of it as Erin turns away, and processing what she's actually been saying.

"I— wow! This is... wow. I've— never been in an aquarium before." She takes an almost tentative step forward, to look into the tank. "It's... beautiful. This is all..."

The right words don't quite come, so she just trails off.