When the Duchess of Cambridge sat in front of the Taj Mahal with Prince William last weekend, the photo was significant for more than its echoes of Princess Diana's visit to the famous landmark 24 years earlier.
It was an opportunity for Kate, 34, to show off her signature seated pose with legs slanted, ankles and knees together and hands cradled in her lap, which she has been perfecting since stepping into the public eye.
It's been labelled 'The Duchess Slant' by etiquette expert Myka Meier who told People magazine that Kate's go-to pose is crucial for not showing off too much during public appearances.
Etiquette expert Grant Harrold, a former butler to Prince Charles and the Duchess of Cornwall, explained that the Duchess slant will allow Kate to display good posture and is actually a comfortable seating position when she's wearing heels.
'Her Royal Highness The Duchess of Cambridge is sitting in a correct and lady like manner, which she would have been taught at an early age. This sitting posture is not only the correct and lady like manner, but is also a practical way of protecting ones modesty when wearing a dress or skirt. Ladies wouldn't normally cross their legs and certainly would not cross at the knees. All ladies will know that this is correct form in public or at an official event.'
He explained that the pose can also help you avoid the socially awkwardfaux pas of accidentally tripping someone up. 'When wearing high heels this positioning can of course be a more comfortable and more importantly stops you from tripping someone up,' he continued. 'Putting ones feet to the side would also show courtesy to others, especially when you are wearing a long evening dress, as one can not see the lady's feet.'