She gives pause to consider this, lips gathering to one side and eyes roving slightly upwards. "Oh, haven't heard this one before." Nat returns her gaze to Gabe. "Something about high or higher?"

If pressed, the redhead could have likely come up with something closer to the answer, but as it is, she'd rather have the surprise than put the spy brain to use. That's still zeroed in on his body language, lest this jovial display be a farce.