Kool-Aid smile
smile from ear to ear
beamer
smilingly
smiler
grinner
cheeser
smile-smirk
grinningly
barrel of sunshine
smilish
smiley
giggler
wreathed in smiles
aftersmile
permasmile
laughaholic
outsmile
smileful
ecstatic
beaming
happy panda
overhappy
lightheartedly
cheerfully
radiant
cheerily
delightedly
over the rainbow
beamish
chuckler
overjoyed
smirker
countersmile
semismile
subsmile
rape face
beam
applaudingly
beamily
outgrin
merry
happy as a box of birds
in good spirits
cheery
boff
buzzin'
good spirits
full of the joys of spring
good-humored
applauder
clapper
chirpiness
bubbly
heyday
amusedly
hearty
laugher
like a dog with two tails
joyously
grin
blissful
genial
gleefully
smile
joyfully
grinchily
gayly
crack a smile
twinkly-eyed
full-handed
blithely
merrily
mirthfully
glad
riant
jubilantly
happily
on air
gladly
applausive
happy as a pig in shit
gleeish
proudheartedly
elated
fun-lover
alacrious
sunny
laughless
eupeptic