gassed
eupeptic
sunny
on air
gladhearted
cheerish
sunshiny
blithe
in good spirits
twinkly
happy as a box of birds
pleased
gayish
buzzin'
in clover
overjoyed
bliss
happyish
twinkly-eyed
full of the joys of spring
bubbly
blissful
glad
happy as a pig in shit
beaming
good-humored
over the rainbow
hearty
cheer
ecstatic
chirk up
gladly
cheer up
blessedly
exultating
overhappy
beamish
simcha
joyous
smiley
chirpiness
keep one's pecker up
do cartwheels
walk on sunshine
wreathed in smiles
eudaemonically
cheerfully
beam
knee-trembling
cheerfulness