You can't really say it, can you?
You can't speak sign language but you can "sign".
Hi: With the palms down, move from inside to outside as if patting 2 or 3 of them on the heads.
In American Sign Language, you can sign "outside" by using the index finger of both hands to point outward from your body in the direction of where you are referring to outside. This can also be accompanied by a facial expression and body language that conveys the idea of being outdoors.
The sign outside the store says "Open for Business."
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.
nothing offical outside of signers and interpreters.
A sign language teacher. That's what my students call me.
To sign "Are you mad at me?" in American Sign Language, you would sign: "YOU MAD ME?" while raising your eyebrows and looking concerned.