As some additional color, Miranda rights have been aggressively weakened over the last decade, and the current Supreme Court majority appears to really dislike them on their whole.
Berghuis v. Thompkins in 2010[0] made it so that the suspect has to explicitly invoke their own right to remain silent – simply remaining silent is not enough. And just last year in Vega v. Tekoh[1] the Court decided that it is not a violation of your civil rights if you are not Mirandized, and you therefore cannot sue over it.
Together, this basically means that its incumbent on every single citizen to be aware of their Miranda rights, and to know the magic words to say. And you should really, really keep track of if your rights are read to you while you're in custody – police will certainly try to admit un-Mirandized evidence, even after all of that.
> Those magic words, legal experts told USA TODAY, must be affirmatively and explicitly stated as, for example, "I want my lawyer and I want to remain silent" or "I want my lawyer and am invoking my right to remain silent." And then you should stay silent.
[0] http://archive.boston.com/news/nation/washington/articles/20...
[1] https://archive.ph/kvKaB
