Have you ever noticed Kate Middleton purposefully slants her legs while sitting?

Many royal fans have pointed out that the Duchess of Cambridge, 34, often strikes the elegant pose while being photographed at events — she does it so much that people have started calling the zig-zag position "the Duchess Slant!"

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Kate in September 2012.

"Typically 'the Duchess Slant' is used when a lady has to sit for an extended amount of time while keeping poise and posture," royal etiquette expert Myka Meier recently revealed to [People](http://www.people.com/people/package/article/0,,2039522221001129,00.html)_.

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"It is the perfect pose for when a camera is shooting directly in front of you because by slightly slanting the knees to create a zig-zag effect when wearing a dress or skirt, your legs are angled so that the camera only shoots the sides of your legs and protects your modesty," Meier continued.

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Princess Diana demonstrating "the Duchess Slant" in 1990.

"'The Duchess Slant' is one of the most elegant and flattering ways to sit, because it has a lengthening effect on the legs. The key with the technique is to square your shoulders straight ahead while maintaining perfect posture. Keeping knees and ankles together at all times, position your legs so that you create a slant, angling your knees to the side. Hands should be folded one over the other and placed in your lap," Meier added.