He stiffened as he was addressed from the side, and turned like a junior officer would to start a dressing down, before visibly choking himself as he spotted the rank on his collar, indicating an officer. He forced a flush, before popping a perfect local salute, a slightly looser form of the salute back home, which had only reinforced his growing suspicions, and answered. "First Left Tenant Murphy sir. My apologies captain, I would have greeted you if I had seen you."