If you ever find yourself talking to the Queen and she puts her bag on the floor - be afraid, very afraid!
It means she isn't enjoying the conversation, according to royal historian Hugo Vickers.
And if the Queen moves her bag from one arm to the other, it's her way of calling time on your chat, apparently.
However, the most dramatical secret signal of all: If the Queen starts spinning her ring, she wants her staff to rescue her - immediately.
Who would have known Her Majesty has a secret code?