“History like that would normally create a sense of embarrassment or discomfort from someone in Anne’s position but here she looks as though she might be ignoring or cutting Camilla rather than avoiding her.
“Camilla’s chatty pose here suggests she’s now relaxed in Anne’s company and her erect thumbs as she speaks is a signal of pleasure and enthusiasm.
“Anne looks more tense, sitting with her bag on her lap in a barrier gesture that normally signals a desire to flee and her frown suggests she might have preferred more of a sport-related companion.”
The expert suggested any tension quickly past, however, and the women soon developed a close friendship.
She said: “A year later Camilla’s popularity with the public was rising and she was proving her worth as a member of The Firm via some tours abroad with Charles.