Covert Exchange at Busy Train Station

Prompt

A close up of spies exchanging information in a crowded train station with uniformed guards patrolling nearby "The microfilm is in your ticket" he murmured pretending to check his watch "They're watching the north exit" she warned casually adjusting her scarf "Use the service tunnel" Commuters rush past oblivious to the covert exchange happening amid announcements of arrivals and departures