Prince William and Prince Harry are seen as complete opposite royals in terms of their personalities. As it happens, the Duke of Cambridge is known to be a much more serious person in the eyes of the public.

According to royal experts, Prince William isn't always like this. It was revealed that he was the more "playful" royal during their childhood days. 

However, things changed upon growing up as the weight of becoming the second person in line to the throne became even more apparent. Not to mention, the princes lost their mother, Princess Diana, at a young age. These circumstances were pointed out as the main factors that impacted the princes' personalities. 

In a scoop made by Express UK, it was noted that Prince William's habits, looks, and body movements today tell a lot about his character. Body language expert Judi James told the publication that the Duke of Cambridge's photos naturally reveal his true colors.

It has been pointed out that the prince's "mouth-puckering" largely suggests his impatience and unapproachability. Along with these descriptions, he is also deemed as "possibly tetchy." 

While these things may come as negative descriptions toward the future king's character, Judi James stressed out that these are normal traits of a "very focused businessman."

The expert's claims further went on to explain that the change in the prince's personality started to happen after Princess Diana's death. Several reports shared that Prince William became a father-figure to both Prince Harry and Prince Charles. With this kind of responsibility, it is logical why a shift in his personality took place. 

Prior to these claims, another source shared a similar description of the Duke of Cambridge's personality. It was asserted that, unlike his younger brother Prince Harry, he is not "warm" and "fuzzy."

In a documentary titled, Reinventing Royals, Sarah Le Marquand also shared her observations. Based on statements, Prince William has a more "obvious controlling" character. 

Cheat Sheet, recently, also published a similar subject. As per the reports, Prince Harry has a very "fun character." While keeping everything professional, he can easily relate to people as talking to him is like engaging a normal conversation with "normal people."

On the other hand, Prince William isn't like this. The report further explained that he is more like his father, Prince Charles, as conversing with them feels as if something is "different." 

In the end, though, many have realized that he is staying in this character because of his role in the monarchy. He cannot do what Prince Harry's doing as it may question his "suitability" in wearing the crown when the time comes.