playful
animated
antic
arch
blithe
buoyant
capering
capersome
cavorting
coltish
devilish
elfish
elvish
exuberant
foolish
freaky
frisky
frolicsome
full of beans
full of mischief
gamesome
gay
gleeful
hearty
high-spirited
impish
jesting
kittenish
knavish
larkish
light-hearted
lively
merry
mischief-loving
mischievous
prankish
pranksome
pranky
puckish
roguish
rollicking
rollicksome
rompish
scampish
scapegrace
skittish
airy
boyish
debonair
facetious
good-humored
jocose
jocular
jovial
mirthful
sprightly
talkative
vivacious
waggish
whimsical
witty