Just like that: Mexican. In Spanish, it would be Mexicano (male), Mexicana (female) or Mexicanos (plural).
Most likely people will call you a German Mexican.
Mexicanos: Is what the Spanish people call the Mexican people.
Mexican
Mexican marigold
Mexican (singular), Mexicans (plural).
Mexican Peso (MXP)
A lucky Mexican
You call a Mexican girl's 15 birthday a quinceanera
you call them a mexican. Incorrect. New Mexico is a US state. You can call us New Mexicans, or Americans.
Well, I hope what you're trying to ask is "What do you call a person who's parents were born in Mexico, but they were not." You call someone who was born in Mexico, Mexican. Someone who's parents are Mexican (Born in Mexico) they are called Mexican- Americans.
The Mexican currency is the Mexican Peso or MXN.
You would call them a "person" or better yet, call them by their name.