In American Sign Language you would sign I SORRY, and to do that you point at yourself then make a thumbs up with your dominant hand put your palm toward yourself, hand goes to chest and moves in a circle.
Main hand, thumbs up, in a circle around the sternum.
You can't speak sign language but you can "sign".
You say "Sorry" in Yoruba language of the Western African origin as "Ema binu".
In American Sign Language, you can sign "WHEN YOU BORN?" to ask someone when they were born.
To sign "Are you happy?" in American Sign Language, you would sign: YOU HAPPY? with raised eyebrows.
Main hand, thumbs up, in a circle around the sternum.
You can't speak sign language but you can "sign".
You say "Sorry" in Yoruba language of the Western African origin as "Ema binu".
In American Sign Language, you can sign "WHEN YOU BORN?" to ask someone when they were born.
To sign "Are you happy?" in American Sign Language, you would sign: YOU HAPPY? with raised eyebrows.
You sign it.
You make an I in sign language and then point to your head and then nod.
In American Sign Language (ASL), you can sign "I know" by pointing to your head with your index finger.
You say "I am sorry I do not have money" in Maasai language of the African origin as "Sore amoo meata iropiyani".
The English word 'sorry' is said in the African Abaluhya (Luhya) language as "polee".
You're asking in which I am assuming you want to say Happy Birthday to someone who is audibly impaired? In which case, you may need to be more specific as there are lots of different "languages" of sign language. Usually depending on which country you are from. Sorry I didn't realise it was out of the American sign language folder. My apologies!
You can't really say it, can you?