spy

Each morning he took the same quiet route through the market , partly out of habit and partly to test his attention to detail . Even though he was no longer working for an agency , he still observed people's gestures and conversations with a professional gaze , noting what most passersby overlooked . As a former spy , he had learned to collect small clues — an offhand remark , an unusual purchase — and to assemble them into a plausible story without drawing attention . Sometimes his notebook remained blank because ordinary days offered nothing significant , yet those empty pages reassured him that nothing important had been missed . On occasion he would meet a former colleague for coffee , and they would exchange cautious anecdotes about office life rather than confidential matters .