Afishapa
Akwaaba
People say Afishapa to one another, using an Akan (a major Ghanian language) word that translates to Merry Christmas and Happy New Year.
A seasonal greeting is a greeting apropos to the season, e.g., Merry Christmas, Happy Easter, Happy Independence Day, etc.
This greeting is the same.
Yes
happy belated birthday
"Happy Christmas, and a Happy New Year!"
because you are basically greeting the person by saying happy birthday.
She wasn't happy
The appropriate greeting for Easter is 'Happy Easter'. If one were to say Happy Birthday Jesus, at Christmas, they could say Christ is Risen at Easter.
Happy Thanksgiving.
I think they felt happy because they might of loved Ghana a lot.