to be floating/walking on air
to be bright-eyed and bushy-tailed
to be on cloud nine
to be dancing in the streets
to be as high as a kite
to jump for joy
to be over the moon
to be as pleased as punch (stare)
to be in seventh heaven
to be thrilled to bits
on top of the world
to be as fresh as a daisy
część z głowy ale sporo ze słownika Cambridge (CALD)
pozdrawiam