It pondered now, intently.

As the lark rose higher, he sank deeper in thought.

As the lark poured out her melody clearer and stronger, he fell into a graver and profounder silence.

At length, when the lark came headlong down, with an accumulating stream of song, and dropped among the green wheat near him, rippling in the breath of the morning like a river, he sprang up from his reverie, and looked round with a sudden smile, as courteous and as soft as if he had had numerous observers to propitiate; nor did he relapse, after being thus awakened; but clearing his face, like one who bethought himself that it might otherwise wrinkle and tell tales, went smiling on, as if for practice.
Perhaps with an eye to first impressions, Mr Carker was very carefully and trimly dressed, that morning.

Though always somewhat formal, in his dress, in imitation of the great man whom he served, he stopped short of the extent of Mr Dombey's stiffness: at once perhaps because he knew it to be ludicrous, and because in doing so he found another means of expressing his sense of the difference and distance between them.