cheerful
beam
beaming
beatific
beatified
blessed
blissful
blithe
blithesome
bright
bright and sunny
bright smile
broad grin
capering
cheery
chirping
dancing
ear-to-ear grin
elated
eupeptic
euphoric
exalted
exhilarated
flushed
flushed with joy
gay
genial
glad
gladsome
gleaming smile
glowing
glowing smile
grin
grinning
happy
high
hopeful
idiotic grin
in good spirits
in high spirits
irrepressible
joyful
joyous
laughing
leaping
of good cheer
optimistic
pleasant
purring
beguiling
compiling
dialing
filing
piling
styling
unsmiling
wiling