Lip reading has uncovered Kate Middleton’s assertive instruction to her youngest son, Prince Louis, during Trooping the Colour.

As they prepared to re-enter Buckingham Palace after the Red Arrows display on Saturday, Middleton reportedly told 7-year-old Louis, “National anthem. Louis, stand.”

Prince Louis then corrected his posture and focused during the national anthem, avoiding his usual antics, such as covering his ears or sticking out his tongue, which he has done in past years.

Kate Middleton, who shares Louis alongside Prince George and Princess Charlotte with Prince William, was seen engaging warmly with her children during the event. The family’s coordinated aquamarine outfits added a touch of elegance.

Middleton’s appearance marked her first public outing since announcing she is in remission from cancer earlier this year. She appeared upbeat, exchanging smiles and conversations with her children as they traveled to Buckingham Palace.

Princess Charlotte paid tribute to her late great-grandmother, Queen Elizabeth II, by donning a diamond horseshoe brooch, a gesture of her connection to the Queen, who had cared for her during her funeral.

Later, Middleton, her children, William, King Charles III, and Queen Camilla posed together on the palace balcony, celebrating the occasion in style.