Watch a very cheeky Princess Charlotte depart Prince Louis' Christening service

She might be the younger sister, but Princess Charlotte isn't afraid to tell it like it is.

As the family-of-five were leaving the service hand in hand, Princess Charlotte lets the photographers know that they aren't allowed to come with them.

"You're not coming!"

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To make sure that the paps got the point, Charlotte followed the statement up with the glare that would scare most of the population.

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Prior to this, Charlotte showed off her best manners to the Archbishop of Canterbury as the two shared a very polite handshake.

After the service at the Chapel, the attendees followed The Duke and Duchess of Cambridge to an intimate afternoon tea at Clarence House.