In pictures released by Buckingham Palace, the heir to the throne can be seen hugging staff members as well as homeless people who were at the party.
The Prince of Wales has previously spoken of the influence the charity has had on him since he was a young child when Princess Diana took him to see their work.
Last week, William was once again seen hugging campaigner Emma Webb after he surprised her during day 13 of her charity walk.
Emma has dedicated her charity walk from Wales to London to her 16-year-old daughter, Brodie, who took her own life in 2020.
Prince of Wales has always been praised for his work being closely linked to that of his late mother as well as their striking resemblance.
Now it looks like the royal has finally incorporated some of her warm gestures and manners into his behaviour too.
