Other than that, Duane says, you should fall back on four short words: "I want a lawyer."
In 2008, Duane, a professor at Virginia's Regent Law School, gave a lecture about the risks of talking to police that was filmed and posted to YouTube. It's since been viewed millions of times, enjoying a new viral boost after the Netflix documentary Making a Murderer spurred interest in false confessions. His argument, which he's since expanded into a new book called You Have the Right to Remain Innocent, is that even if you haven't committed a crime, it's dangerous to tell the police any information. You might make mistakes when explaining where you were at the time of a crime that the police interpret as lies; the officer talking to you could misremember what you say much later; you may be tricked into saying the wrong things by cops under no obligation to tell you the truth; and your statements to police could, in combination with faulty eyewitness accounts, shoddy "expert" testimony, and sheer bad luck, lead to you being convicted of a serious crime.