esta ____?
To ask what someone is like in Spanish, say, "Como eres?"
You have to say: Usted trabaja?
¿Estás triste?
Tienes un novio?
Cuantos anos tienes?
¿Cuál es tu nacionalidad?
¿Qué te gusta hacer?
¿Está / están / estás / estáis casados?
You ask him/her. A Spanish person is one that was born in spain, a hispanic one is one with latin roots.
When you are talking about yourself, you say "Tengo (your age) años."
You can ask "¿Cómo eres?" to inquire about someone's personality or characteristics. If you are asking about someone else, you can say "¿Cómo es él/ella?" to mean "What is he/she like?"