Royals Princess Kate (in Kate Spade!) Gets a Rare Public Curtsy—Find Out Why Princess Kate stepped out in a pretty pink rose print Kate Spade dress for World Mental Health Day on Monday. By Erin Hill Erin Hill Twitter Senior News Editor, PEOPLE People Editorial Guidelines Published on October 10, 2016 12:19 PM Share Tweet Pin Email Photo: Danny Martindale/GC Images Kate in Kate! Princess Kate stepped out in a pretty pink rose print Kate Spade New York dress for World Mental Health Day on Monday. She was joined by Prince William and Prince Harry as the royal trio took a ride on the famed London Eye to shine a spotlight on the important issue of mental health awareness. Danny Martindale/GC Images Kate wowed in the elegant pleated chiffon dress, which retails for $498. The feminine rose print buttoned-up silk shirtdress by the New York-based design house is styled with a slender tie at the neckline. She accessorized the look with nude heels, matching L.K. Bennett clutch and, of course, her famous blowout! “The Duchess embodies all of the qualities of the Kate Spade New York girl — she is quick, curious, playful and strong and she is an incredibly interesting woman, leading an incredibly interesting life. Being a Brit myself, this moment is particularly meaningful for me,” Deborah Lloyd, president and chief creative officer of Kate Spade New York, tells PEOPLE. Upon arrival, the royal mom received a curtsy from one of the event’s participants. The woman shook Kate’s hand as she gave her a slight curtsy. Chris Jackson/Getty Images Kate may be a princess, but she doesn’t expect people to bow and curtsy, according to a royal source. Neither she nor William or Harry expect formalities — they’re happy with people being relaxed. Buckingham Palace has provided a few guidelines when meeting a member of the royal family. WATCH: How Should You Greet a Royal? Although there are no obligatory codes of behavior when meeting the Queen or a member of the royal family, many people wish to observe the traditional forms, according to the site. “For men this is a neck bow (from the head only) whilst women do a small curtsy. Other people prefer simply to shake hands in the usual way.” And royals themselves are sometimes spotted in the respectful pose. Princess Kate was snapped giving a rare public curtsy to Queen Elizabeth in January. Joe Little, managing editor of Majesty magazine, told PEOPLE the cause behind the curtsy is simple. “It is rare, but it indicates that this was the first time that the Duchess saw the Queen,” he said. “It would normally happen in private. Although they came from Sandringham House, they obviously hadn’t seen each other before Kate and the Middletons and their friends set out on foot.” Want to keep up with the latest royals coverage? Click here to subscribe to the Royals Newsletter. He adds, “It’s unusual to see it in public but not unique. That would have been the first communication between them on that day.” There is a common misconception that women in the royal family curtsy to each other, Little adds: “The only woman the women in the family curtsy to in the royal family is the Queen.”