To say "how are you" in a language spoken by a Romani group, you would need to specify which group. Here are some examples:
* Romani (most widely spoken): "Sa te kerel?"
* Caló (spoken by some Spanish Romani): "Cómo está usted?" (this is Spanish, as Caló borrows heavily from Spanish)
It's important to be respectful and use appropriate terminology when discussing different cultures and languages.