Слово "knack". Англо-русский словарь Мюллера

He was developing a sense of humour, and found that he had a knack of saying bitter things, which caught people on the raw; he said them because they amused him, hardly realising how much they hurt, and was much offended when he found that his victims regarded him with active dislike.

He was a stern, gaunt man, with a harsh voice, and an aggressive manner, but he had the merit of knowing how to assimilate the ideas of other men, and to pass them on in a way which was intelligible and even interesting to the lay public, with a happy knack of being funny about the most unlikely objects, so that the precession of the Equinox or the formation of a vertebrate became a highly humorous process as treated by him.

Diligence and attention soon gave him the knack of it, and he strode down the street with his mouth full of harmony and his soul full of gratitude.

She had the uncanny knack of exaggerating some little fault or idiosyncrasy, the turn of a person’s head, the shrug of a shoulder, the inflection in a voice, and her unfortunate victim would be aware of this, aware of Maria’s large blue eyes that looked so innocent, so full of dreams, and which were in reality pondering diabolical mischief.