He looked at this man with great curiosity.

There was certainly something noticeable about him, he decided.

A wiry, alert, keen-eyed man, with good, somewhat gipsy-like features, much tanned by the weather, as if he were perpetually exposed to sun and wind, rain and hail; sharp of movement, evidently of more than ordinary intelligence, and, in spite of his rough garments and fur cap, having an indefinable air of gentility and breeding about him.

Brereton had already noticed the pitch and inflection of his voice; now, as Harborough touched his cap to the Mayor, he noticed that his hands, though coarsened and weather-browned, were well-shaped and delicate.

Something about him, something in his attitude, the glance of his eye, seemed to indicate that he was the social superior of the policemen, uniformed or plain-clothed, who were watching him with speculative and slightly puzzled looks.
"Well, and what's all this, now ?" said Mallalieu coming to a halt and looking round.