The eyes were slightly mischievous, though the face retained its decent gravity.

Brother Mark's thin, bright face flashed for an instant into a slightly mischievous smile, as though he had still some mysterious surprise up his sleeve.

With a slightly mischievous air, Shelby said, "Well, they know better than to say anything bad."

Then she favored Picard with a slightly mischievous smile.

Not that this slightly mischievous streak was without value.

She came right up to the chair, a slightly mischievous smile upon her face.

Evelyn told me the following anecdote with a slightly mischievous smile and a bit of triumph in her voice.

When his head came back up, there seemed to be a slightly mischievous twist to his lips.

Tara still managed to appear slightly mischievous and Wade still looked a bit smug.