Zara’s seemingly “spontaneous” and “playful” personality may encourage the Queen to mirror some of those traits, the expert claimed.
During one outing, the mother-of-two seems happy to take on a childlike role with the Queen which seemed to be well-received.
She added: “Zara’s body language looks more like that of a happy, playful child here as she leans back with both hands on the balcony in front of her.
“This, and the very affectionate-looking smile she aims at her grandmother, look like an invitation to share the fun.
“The Queen reciprocates, with a broad, eye-wrinkling smile that involves an upper and lower teeth display.”