Prince GeorgeandPrince Charlotteare proving once again that they arelittle scene stealers!While their parents,Prince WilliamandKate Middleton, joined theQueen on the balcony of Buckingham Palace on Tuesday,the royal siblings were behind the scenes, enjoying the festivities with their own little party from the palace windows.Members of the royal family, includingPrince HarryandMeghan Markle, were on hand to mark the 100th birthday celebrations of the Royal Air Force with a special flypast.Can’t get enough of PEOPLE’s Royals coverage?Sign up for our newsletterto get the latest updates onKate Middleton,Meghan Markleand more!WENNThe royal kids are flypast veterans, having witnessed the fun spectacle duringrecent Trooping the Colour events.George and Charlotte (who displayed hersignature tongue-waving move!) were under the watchful eye of their trustynanny Maria Turrion Borrallo, who lives at Kensington Palace with the royal family, and Kate’s private secretary, Catherine Quinn.REALTED VIDEO: The Royal Fab Four Reunites!Meghan MarkleJoins Harry, Will and Kate for Grand Military ServiceThe siblings have been having an eventful summer. On Monday, they attended thechristening of their younger brother, Prince Louis(and celebrated with seven-year-old cake!).PA Images/SipaThey recently had afun-filled polo playdate with mom Kateand a few of their cousins. And, of course, they were thebreakout stars of Harry and Meghan’s royal weddingin May.The celebrations will continue for George, who turns 5 on July 22.

Prince GeorgeandPrince Charlotteare proving once again that they arelittle scene stealers!

While their parents,Prince WilliamandKate Middleton, joined theQueen on the balcony of Buckingham Palace on Tuesday,the royal siblings were behind the scenes, enjoying the festivities with their own little party from the palace windows.

Members of the royal family, includingPrince HarryandMeghan Markle, were on hand to mark the 100th birthday celebrations of the Royal Air Force with a special flypast.

WENN

Prince George And Princess Charlotte Spotted

The royal kids are flypast veterans, having witnessed the fun spectacle duringrecent Trooping the Colour events.

George and Charlotte (who displayed hersignature tongue-waving move!) were under the watchful eye of their trustynanny Maria Turrion Borrallo, who lives at Kensington Palace with the royal family, and Kate’s private secretary, Catherine Quinn.

REALTED VIDEO: The Royal Fab Four Reunites!Meghan MarkleJoins Harry, Will and Kate for Grand Military Service

The siblings have been having an eventful summer. On Monday, they attended thechristening of their younger brother, Prince Louis(and celebrated with seven-year-old cake!).

PA Images/Sipa

Prince Louis christening

They recently had afun-filled polo playdate with mom Kateand a few of their cousins. And, of course, they were thebreakout stars of Harry and Meghan’s royal weddingin May.

The celebrations will continue for George, who turns 5 on July 22.

source: people.com