He had evidently seen me, without letting it appear that he had, and I noticed then that his eyes, which were never fixed on the person to whom he was speaking, strayed perpetually in all directions, like those of certain animals when they are frightened, or those of street hawkers who, while they are bawling their patter and displaying their illicit merchandise, keep a sharp lookout, though without turning their heads, on the different points of the horizon, from any of which may appear, suddenly, the police.