Prince William attends the grand opening of the House of Japan near Kensington Palace in London

The Duke of Cambridge, 34, made a rare mistake when he asked a group of school children if they had tried

Prince William made a fitting comment on his cheek-prone grandfather when he visited Japan House in London on Thursday.

The Duke of Cambridge, 34, asked a group of school children if they had tasted "a lot of Chinese food" while practicing picking edamame with chopsticks at the new center that celebrates Japanese culture.

He quickly corrected himself, and added: "Um, Japanese food. Have you eaten a lot of Japanese food? Do not? Not too much. Do you like sushi? It's delicious, it's really delicious. "

The Duke of Cambridge, 34, made a rare mistake when he asked a group of school children if they had tasted "a lot of Chinese food" while practicing picking edamame with chopsticks at the new Japan House, which celebrates Japanese culture on Thursday. .

The royalty was absolutely enchanting when she met a schoolgirl who was participating in a workshop on the ancient Japanese art of copper beating, pictured, during Thursday's visit.

The royalty was absolutely enchanting when she met a schoolgirl who was participating in a workshop on the ancient Japanese art of copper beating, pictured, during Thursday's visit.

The royalty was absolutely enchanting when she met a schoolgirl who was participating in a workshop on the ancient Japanese art of copper beating, pictured, during Thursday's visit.

Executive chef Akira Shimizu presented at the Akira restaurant, in the Japanese House, an exclusive bento painting of the Duke of Cambridge, which is a short walk from Kensington Palace

Executive chef Akira Shimizu presented at the Akira restaurant, in the Japanese House, an exclusive bento painting of the Duke of Cambridge, which is a short walk from Kensington Palace

Executive chef Akira Shimizu presented at the Akira restaurant, in the Japanese House, an exclusive bento painting of the Duke of Cambridge, which is a short walk from Kensington Palace

The London site is the most recent opening for the House of Japan, with outposts already in Los Angeles and Sao Paulo.

The center, which houses a restaurant, shop and library, as well as spaces for exhibitions and workshops, aims to create a greater understanding of Japan among the British public and deepen the cultural, social and economic ties between the two nations.

William, who visited Japan in 2015, joined the inauguration by the Deputy Prime Minister of Japan, Taro Aso.

Brief and unusual slip apart, William was the perfect royal ambassador during the entire visit, even drinking a cup of sake at 11am.

Prince William, Duke of Cambridge, greets Japanese Deputy Prime Minister Taro Aso when he arrives to open the House of Japan. The center encourages people to learn more about Japan

Prince William, Duke of Cambridge, greets Japanese Deputy Prime Minister Taro Aso when he arrives to open the House of Japan. The center encourages people to learn more about Japan

Prince William, Duke of Cambridge, greets Japanese Deputy Prime Minister Taro Aso when he arrives to open the House of Japan. The center encourages people to learn more about Japan

Prince William seemed fascinated with the conversation while talking to a schoolgirl who learned to use chopsticks. The staff of the internal restaurant Akira observed

Prince William seemed fascinated with the conversation while talking to a schoolgirl who learned to use chopsticks. The staff of the internal restaurant Akira observed

Prince William seemed fascinated with the conversation while talking to a schoolgirl who learned to use chopsticks. The staff of the internal restaurant Akira observed

William, father of three children, beamed as he spoke with the girl, a student of St Cuthbert with St Matthias CE Primary School, at the House of Japan on Thursday

William, father of three children, beamed as he spoke with the girl, a student of St Cuthbert with St Matthias CE Primary School, at the House of Japan on Thursday

William, father of three children, beamed as he spoke with the girl, a student of St Cuthbert with St Matthias CE Primary School, at the House of Japan on Thursday

The second in line of the throne came by car from Kensington Palace, only 200 yards away.

When asked why he had not walked, an officer said it was for "security reasons" and his presence no doubt attracted a large crowd with camera phones in the store.

The prince saw some of the exquisite products for sale and walked around an exhibition of metal crafts, observing the ancient craftsmanship of copper beating in action.

On the way he met Haruna Yamada and Hirokazu Kobayashi, the designers of the exhibition, who told him they had met at the university. & # 39; Like me and my wife! & # 39; he exclaimed. "My wife is the artistic partner, not me, unfortunately."

Royalty appeared in a good mood while sharing a joke with schoolchildren who learned the ancient Japanese art of copper beating. Japan House has spaces for exhibitions and workshops

Royalty appeared in a good mood while sharing a joke with schoolchildren who learned the ancient Japanese art of copper beating. Japan House has spaces for exhibitions and workshops

Royalty appeared in a good mood while sharing a joke with schoolchildren who learned the ancient Japanese art of copper beating. Japan House has spaces for exhibitions and workshops

The prince seemed confused about the best way to use the small hammer used to beat the copper

The prince seemed confused about the best way to use the small hammer used to beat the copper

The prince seemed confused about the best way to use the small hammer used to beat the copper

William was ready to join in the fun while talking to school children at today's event

William was ready to join in the fun while talking to school children at today's event

William was ready to join in the fun while talking to school children at today's event

On the top floor, he met the Japanese chef Akira, who established a namesake restaurant in the store, and showed him a Bento box beautifully presented with everything from tuna and sea urchin in truffle cream sauce to shitake mushroom tempura.

"Very impressive," William said, as he served himself a salmon sashimi. Thank you very much. My wife and I love sushi. We may have to come here for lunch when there is no one else inside.

"You should get a lot of Japanese visitors in. So, how many people come here to order a hamburger? That's what usually happens, is not it?

He then sat down with a group of local elementary school children who were learning to use toothpicks and origami skills.

When the prince sat down at the table, one of the children told him flatly that he was tired. Laughing, he replied, "Are you tired, right?"

& # 39; Are you tired? & # 39; the boy asked. & # 39; Yes, I'm pretty tired too. Has it been a long day for you too? Have you been enjoying your chopsticks? "No," the boy replied. "They're pretty complicated, I know," smiled William.

The prince looked at him with great respect when executive chef Akira Shimizu gave him the exclusive bento box at the House of Japan.

The prince looked at him with great respect when executive chef Akira Shimizu gave him the exclusive bento box at the House of Japan.

The prince looked at him with great respect when executive chef Akira Shimizu gave him the exclusive bento box at the House of Japan.

She told another girl that she was very good at using her chopsticks. "Thank you, Your Royal Highness," he said. "You have been informed very well," said William. "The beans are quite difficult, they are quite slippery."

On the ground floor, royalty unveiled a plaque to mark the inauguration and gave a short speech in which he greeted the guests in Japanese and said: "Minna sama, Konichi-wa. & # 39;

He added: "This incredible building – Japan House London – aims to be the bridge on which the best ideas and creativity will flow between the United Kingdom and Japan, where we can build new and lasting relationships in culture, education and business and forge a better understanding. from his wonderful country. & # 39;

The prince joined a kampai toast – the Japanese equivalent of "applause" – and drank a small portion of Fukugao sake from the city of Sanjo served in a masu, a square wooden sake cup used on festive occasions.

They also presented him with a handmade silver teapot. Similar items are sold in the store for up to £ 8,000.

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