All it takes is a slight tap or simple glance to the chest to deliver the message.
And the players on the Florida State football team just know.
"We [also] got a little code that we go by," starting safety Derwin James said. "Everybody will know somebody's got a mic is on."
Added defensive end Josh Sweat: "I can't say anything because they're going to know."
The inside joke helps the players be more cognizant of what they say while having fun with the added attention they are receiving from Showtime's film crew during preseason camp.