puckish

The shining lips and eyes of his florid face now proclaimed speech, with his Puckish fancy jack-o'-lanterning over it.

As the kittens grew older, they had the run of the house, which they filled with elfin mirth of motion and reels of Puckish revel.

The luncheon-bell tinkled across the ensuing pause, like a peal of puckish laughter.

Gives you an impression, perhaps by the brightness of his eyes, of Puckish mirth playing within his mind.