Kate Middleton was spotted doing an effortless curtsy at a royal event

• Kate Middleton attended a Garter Day service with other members of the royal family on Monday.
• She was photographed curtsying exactly as members of the royal family were trained to do.

Kate Middleton, the Princess of Wales, put her royal etiquette training on display at a royal event.

Monday was Garter Day in the United Kingdom, which celebrates the Order of the Garter, the "oldest and most senior Order of Chivalry," according to the royal family's website.

The site also notes King Edward III created the order nearly 700 years ago after being inspired by King Arthur's round table.

The royal family marked the occasion at St George's Chapel at Windsor Castle with the Order of the Garter Service and Procession. Queen Elizabeth II was buried at the chapel in September 2022.

Senior royals including King Charles III, Queen Camilla, Prince William, and Prince Edward participated in the procession, as they are members of the Companion of the Order.

As she is not a a member of the Order, Kate did not participate in the procession, though she did attend the service at the chapel.

And after it ended, Kate watched the king and queen leave the service in a carriage alongside William, Edward, and Sophie, the Duchess of Edinburgh.

As the monarch and his wife passed by, Kate was photographed dipping into a curtsy, folding her hands across her lap as she bent her knees.

According to the royal family's website, men traditionally bow their heads when they greet the monarch, while women curtsy, though these greetings are not mandatory.

Kate offered King Charles and Queen Camilla respect with her curtsy, grinning at them as they passed.

The Princess of Wales attended the service in a white dress with black polka dots designed by Alessandra Rich.

Polka dots have been one of Kate's go-to patterns over the years, as she's appeared in polka dot looks at events like Wimbledon, the Royal Ascot, and even to drop off her children at their first day of school.

For the Order of the Garter Service, Kate paired her spotted dress with black-and-white shoes and a coordinating hat from Philip Treacy.

The Collingwood pearl and diamond earrings, which once belonged to Princess Diana, completed her two-toned ensemble.

The Order of the Garter Service holds special significance for William and Kate, as she attended the ceremony in 2008 when they were dating, which formally indicated she would likely become a member of the royal family someday, according to People.