Princess Charlotte steals the show with a curtsy

William, Kate and their children traveled to Germany from Poland.

Princess Charlotte, 2, wearing a blue floral smock dress and blue shoes, proved determined to step down the plane's stairs on her own and accepted her own bouquet of flowers as the family was greeted by well-wishers at the airport. Charlotte appears to already be mastering the art of diplomacy as she curtseyed while at her mom's side and shook the hand of an attaché on the red carpet.

Prince George, who turns 4 in just a few days, was dressed in navy blue shorts and a white collared shirt.

When the family departed Poland earlier today, George was seen anxiously tugging on William's hand to get back on the plane. The future King of England is obsessed with anything that flies. His parents took him last summer to the Royal International Air Tattoo, which bills itself online as "the world's greatest air show."

On this trip, the two Cambridge children have often been seen peering out the plane's windows and have been fascinated by the plane rides.

George had to be coaxed by his father to deplane when he arrived in Warsaw, however, he seemed to get the hang of it upon arrival in Berlin, shaking the hands of the dignitaries greeting the family. Charlotte was a natural, dancing while holding her mother's arm as the family left en route to Berlin.

William described his and Kate's visit yesterday to the Stutthof concentration camp, one of the first concentration camps installed outside of Germany, as "shattering."

The Duke and Duchess of Cambridge also spent time today at Strassenkinder, a charity that assists young people from disadvantaged backgrounds, including homeless children.

They later met with the President of Germany, Frank-Walter Steinmeier, at Bellevue Palace in Berlin.

Perhaps the most anxiously awaited part of the tour will be on Thursday when William and Kate take their competitive streak to the water again as they captain crew boats in Heidelberg.