How to be smooth

Maybe I'm bilingual.

You could also say that you are a multicultural motherfucker

quoi est votre nombre?

In spanish: ¿cual es tu nombre?

You could say 'se escribe tú nombre?'

You CAN say: ¿CÓMO se escribe tu nombre?

¿Cuál es tu nombre? is the correct form in Spanish. In French if you want to ask the number is like this: Quel est ton numéro? If you want to ask for the name is like this: Quel est ton nom?

?que es tu nombre?
I don't know how to do the backwards ? and the accent marks