Kate Middleton knows that you’re never fully dressed without a smile.

The Duchess of Cambridge is among the most photographed women today and she’s camera ready with her “beautiful smile.” A number of netizens love the way Middleton grins and how she radiates positivity by simply smiling.

“Beautiful smile i love #katemiddleton,” one netizen wrote on Twitter.

A number of other Twitter users shared photos of the royal mom of three smiling and they praised her simple yet sweet gesture.

According to Katie Nicholl in her book “ Kate: The Future Queen,” Middleton’s favorite teacher Dr. Robert Acheson, former headmaster of St. Andrews’ Prep School passed a piece of wisdom to the duchess that encourages her to keep smiling.

“When Dr. and Mrs. Acheson left the school, Kate presented them with a teddy bear that everyone in the family had signed. She had carefully inscribed it with the words that Dr. Acheson had instilled in her: ‘I’ll always keep smiling,’” Nicholl wrote.

“She had the most fabulous smile, and I always told her, whatever happens in life, keep smiling,” Dr. Acheson later explained the significance of the statement.

In related news, Prince Harry and Meghan Markle are stopped by Kensington Palace from eclipsing Middleton. The Duchess of Sussex designed an African garden for the charity Camfed.

Markle’s garden features a breeze-block school house surrounded by crops like peanuts and okra that girls can easily learn to grow. However, a source at Camfed said that Kensington Palace advised them not to use any photos of Prince Harry with young Zimbabwean alumni to promote the garden because Middleton is also co-designing a garden.

Months before Markle’s African garden was reported, the palace already announced that the Duchess of Cambridge designed an English garden. Middleton’s woodland wilderness garden at the Chelsea Flower Show included a teepee.

Middleton was accused of “cultural misappropriation“ because the design didn’t really evoke the vision of English garden and because the cone-shaped tent is considered sacred by native Americans. However, sociology professor Frank Furedi finds Middleton’s design “harmless enough” and feels that duchesses like Middleton should have the freedom to do something offbeat sometimes.

Kate Middleton
Kate Middleton’s “beautiful smile” has a story behind it. Pictured: Middleton laughs as she speaks with guests during a reception in support of The Anna Freud Centre on May 4, 2016 at Spencer House in London. Getty Images/Kirsty Wigglesworth