slyness

Jones is at once affable and intense — a polite slyness radiates off him.

When they finally spotted him hiding among the branches, his mom said, Berkley smiled with a sort of slyness that he would become known for as he grew up.

But none equaled the scale, scope, slyness or perfection of the original.

He is certainly cheerful in the company of his employers, and whether his smile represents slyness or sincerity is a question of some consequence.

He added, with characteristic slyness: “Not that I think pretension necessarily a bad thing in a writer.”