When the MI6 officer spotted Gordievsky waiting by the bread shop with the all-important Safeway bag, he or she would acknowledge the escape signal by walking past him carrying a green bag from Harrods and eating a chocolate bar, either a KitKat or a Mars bar—“a literally hand-to-mouth expedient,” as one officer remarked. The chocolate eater would also be wearing something gray—trousers, skirt, or a scarf—and would make brief eye contact but not stop walking.
