1) All smiles 2) Bright 3) Bright and pleasant 4) Cheerful 5) Chipper 6) Enlivening 7) Heartening 8) In good spirits 9) Jovial 10) Lighthearted and upbeat 11) Optimistic 12) Promoting a feeling of cheer 13) Promoting cheer 14) Sunny 15) Upbeat 1) Blithesome 2) Bubbly 3) Cheerful 4) Content 5) Gay 6) Happy 7) Heartening 8) He ning 9) Positive 10) Riant 11) Untroubled 12) Upbeat 
[adj] - bright and pleasant
gay adjective bright and pleasant; promoting a feeling of cheer; `a cheery hello`; `a gay sunny room`; `a sunny smile`
in good spirits; gay. · promoting cheer; enlivening.