playful
arch
demoniac
devilish
elfish
elvish
foolish
full of mischief
high-spirited
implike
knavish
mischief-loving
mischievous
pixilated
prankish
pranksome
pranky
puckish
pucklike
roguish
scampish
scapegrace
sportive
trickish
tricksy
waggish
conspiratorial
coquettish
elfin
gleeful
ironic
irrepressible
malevolent
maniacal
mirthful
mirthless
saucy
self-deprecating
sheepish
tease
wolfish
wry