We can't prove she showed any trickiness in having you for a cousin.
He called upon all his shrewdness, all his trickiness of the South.
The keenest Yankee that ever skinned a flint, cannot approach him in trickiness.
He abhorred ostentatious display and trickiness in a teacher.
Avoid also any appearance of trickiness or sharp practice, stories of shrewd bargains, etc.