01of 15Princess Charlotte and Kate Middleton on charity sailing day 2019.ADRIAN DENNIS/AFP/GettyKate Middletonquickly jumped into mom mode whenPrincess Charlotteplayfully stuck out her tongue (rather than wave like her mom suggested!) at an August 2019 charity sailing race.

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Princess Charlotte and Kate Middleton on charity sailing day 2019.ADRIAN DENNIS/AFP/Getty

Princess Charlotte of Cambridge Catherine, Duchess of Cambridge

Kate Middletonquickly jumped into mom mode whenPrincess Charlotteplayfully stuck out her tongue (rather than wave like her mom suggested!) at an August 2019 charity sailing race.

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Tim Graham/Getty

Harry Sticks Out Tongue

03of 15Daily Mirror/Mirrorpix/Getty… and it wasn’t the first time! Here, Harry shared his best face to photographers while traveling to Portland Hospital to visit his new cousin,Princess Beatrice.

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Daily Mirror/Mirrorpix/Getty

Prince William

… and it wasn’t the first time! Here, Harry shared his best face to photographers while traveling to Portland Hospital to visit his new cousin,Princess Beatrice.

04of 15DAVID HARTLEY/REX/ShutterstockDressed in his wedding-day best, Harry looked adorable as a pageboy in 1989.

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DAVID HARTLEY/REX/Shutterstock

VISCOUNT CHARLES ALTHORP WEDDING TO VICTORIA LOCKWOOD, BRITAIN - 1989

Dressed in his wedding-day best, Harry looked adorable as a pageboy in 1989.

05of 15ANDREW MILLIGAN/AFP/GettyPrincess Charlottecouldn’t help but show photographers how she really felt outside of St. George’s Chapel, the location of her uncle,Prince Harryand newly-minted aunt,Meghan Markle’s wedding.

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ANDREW MILLIGAN/AFP/Getty

BRITAIN-US-ROYALS-WEDDING-GUESTS

Princess Charlottecouldn’t help but show photographers how she really felt outside of St. George’s Chapel, the location of her uncle,Prince Harryand newly-minted aunt,Meghan Markle’s wedding.

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Bob Aylott/ANL/REX/Shutterstock

Prince Of Wales - 1969. Picture Shows Prince Charles Watching A Rugby Match.

07of 15Steve Wood/REX/ShutterstockPrince Williamlooked pensive during a 2003 polo match.

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Steve Wood/REX/Shutterstock

RUNDLE CUP POLO MATCH, TIDWORTH, BRITAIN - 12 JUL 2003

Prince Williamlooked pensive during a 2003 polo match.

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Prince Harry Celebrates The Expansion Of Coach Core At Lord’s Cricket Club

Harry, meanwhile, let loose at a Coach Core sports event in 2016.

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Prince Harry Visits Aberdeen

Because Harry just couldn’t wait to get on the field to play football back in 2016.

10of 15Tim Rooke/REX/ShutterstockWilliam playfully celebrated Edward Van Cutsem and Lady Tamara Grosvenor’s wedding day in 2004.

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Tim Rooke/REX/Shutterstock

WEDDING OF EDWARD VAN CUTSEM AND LADY TAMARA GROSVENOR, CHESTER CATHEDRAL, BRITAIN - 06 NOV 2004

William playfully celebrated Edward Van Cutsem and Lady Tamara Grosvenor’s wedding day in 2004.

11of 15JEREMY SELWYN/AFP/GettyHarry shared his take on a proper boxing stance.

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JEREMY SELWYN/AFP/Getty

BRITAIN-ROYALS

Harry shared his take on a proper boxing stance.

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Prince Harry Visits RFU Community Rugby Programme

… and the best way to take in a sporting event.

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Wedding Of Pippa Middleton And James Matthews

And in case you were wondering, yes, Charlotte is pretty much her uncle’s twin.

14of 15David Hartley/REX/ShutterstockNot even the Queen is immune to showing her silly side.

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David Hartley/REX/Shutterstock

Royal Windsor Horse Show, Berkshire, Britain - 10 May 2013

Not even the Queen is immune to showing her silly side.

15of 15REX/Shutterstock… and neither wasPrince Philip.

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REX/Shutterstock

The Queen’s Diamond Jubilee UK Tour, Henley -On-Thames, Britain - 25 Jun 2012

… and neither wasPrince Philip.

source: people.com