Now that he had an opportunity of observing her, Arthur found that her diminutive figure, small features, and slight spare dress, gave her the appearance of being much younger than she was.

A woman, probably of not less than two-and-twenty, she might have been passed in the street for little more than half that age.

Not that her face was very youthful, for in truth there was more consideration and care in it than naturally belonged to her utmost years; but she was so little and light, so noiseless and shy, and appeared so conscious of being out of place among the three hard elders, that she had all the manner and much of the appearance of a subdued child.
In a hard way, and in an uncertain way that fluctuated between patronage and putting down, the sprinkling from a watering-pot and hydraulic pressure, Mrs Clennam showed an interest in this dependent.

Even in the moment of her entrance, upon the violent ringing of the bell, when the mother shielded herself with that singular action from the son, Mrs Clennam's eyes had had some individual recognition in them, which seemed reserved for her.

As there are degrees of hardness in the hardest metal, and shades of colour in black itself, so, even in the asperity of Mrs Clennam's demeanour towards all the rest of humanity and towards Little Dorrit, there was a fine gradation.
Little Dorrit let herself out to do needlework.