There's something about Kate Middleton and Prince William in public together that pleases a lot of their royal fans. It could be because they reflect how much they are such a powerful royal couple in the way they act towards each other.

Body language expert Judi James told Daily Express that the strength of the relationship of the Duke and Duchess of Cambridge is evident in their movements. For a couple who has been together for long-term, Prince William and Kate apparently has connected signals that "appear even more openly romantic together than usual."

For instance, at the couple's last royal event for the Royal Variety Performance, Prince William was seen gently guiding his wife to walk in front of him. According to James, it was such a display of how much a gentleman the second in line to throne is.

The expert also noticed that Prince William and Kate mirrors their facial expression. Kate's sparkling eyes and her wide smile is apparently a demonstration of her pleasure to be with her husband's company. Meanwhile, Prince William is also beaming with his shy smile. James said that the couple, who has three kids, are clearly happily in love with each other after all these years.

Meanwhile, as the Christmas holidays are drawing closer, royal fans observed that Kate Middleton and Prince William have yet to announce if they will be attending Queen Elizabeth's annual family celebrations in Sandringham. Prince Harry and Meghan Markle have already confirmed weeks ahead of the festivities that they will be bringing their son, Archie Harrison, to the United States for Christmas.

The Queen has given her consent for the Sussex royals to skip the Sandringham royal family celebrations, according to the palace. However, sources from Buckingham said that they cannot yet comment on which other family members are not going to spend Christmas with Queen Elizabeth, apart from the Sussexes.

Prince William and Kate apparently spent Christmases away from the royal family before. They were not in Sandringham when Kate was pregnant with Prince George or when Charlotte was still a tiny baby.

According to reports, it is actually normal for royal couples with babies or younger kids to choose to spend their Christmas elsewhere. With Prince Louis still quite little, there might also be a chance that the Cambridges will skip Sandringham this year.