Always show respect. But never admit to anything . And once they've miranda'd you.. Stop talking completely!! Information given/admissions can potentially get thrown out prior to the Miranda warning, after is a LOT harder.
On June 13, 1966 United States Supreme Court handed down its decision in the case of Miranda v. Arizona.This decision established the principle that criminal suspects in custody must be advised of their constitutional rights before they can be questioned by law enforcement authorities.