I never talked much to people that use a lot of expressions, and the usage of Spanish terms, like “nada” or “amigo”, as I could observe from the outside, felt inconsistent. And upon thinking on that, it got me curious, is it common to use such expressions or not?
Like you’ll never hear disculpe or something, but realize that some Spanish words are deeply engrained in US pop culture since before the war back when white (by then standards) Spanish speaking entertainers were all the rage. If it was on looney tunes you can assume folks can use it without batting an eye.