do a kindness

do someone a kindness

to do a kind deed for a person. My neighbor did me a kindness when he cut my grass. I am always happy to have the opportunity of doing someone a kindness.
See also: kindness
References in classic literature ?
Omer, 'when a man is drawing on to a time of life, where the two ends of life meet; when he finds himself, however hearty he is, being wheeled about for the second time, in a speeches of go-cart; he should be over-rejoiced to do a kindness if he can.