The expert suggested Princess Anne will bring out a rare side of her mother like Prince Philip.
While the coronavirus pandemic means the royals have stepped out less often, previous outings of Princess Anne and the Queen have shown their bond.
Judi added: In one photo, the pose is typical in the way that it shows the relaxed closeness between the mother and daughter, but also how much those bonds are based on some similar body language traits to those between the Queen and Prince Philip. Anne stands tall, looking around with the kind of steely, puckered brow expression of her father while the Queen stands close, looking interested and amused.