“Using her Launer handbag, the Queen is able to silently tell her entourage that it’s time for a conversation to end. For example, as People magazine reported (citing royal historian Hugo Vickers), “when Her Majesty is ready to wrap up a conversation or social event, she switches her handbag from one arm to another, signaling her handlers to move in and usher her away.
And that’s only one of the many signals. The Telegraph explores a few others:
If the Queen places her handbag on the table at dinner, it signals that she wants the event to end in the next five minutes. If she puts her bag on the floor, it shows she’s not enjoying the conversation and wants to be rescued by her lady-in-waiting.”