The Prince and Princess of Wales appear unbothered by Prince Harry's memoir.
On Thursday, Jan. 12, the Cambridges made their first public appearance since the Duke of Sussex's book release, visiting Liverpool, England, and surrounding neighborhoods.
William and Kate's engagements were to honor those working in healthcare and mental health fields, as well as to promote awareness of mental health initiatives. The pair visited the new Royal Liverpool University Hospital, as well as the Open Door Charity's Bloom Building, which promotes youth mental health programs.
On their way into the hospital, one onlooker asked William and Kate about Harry's comments in and about Spare, but the pair didn't respond.
It's unclear, however, if they even heard the question being asked because it was reportedly (and visibly, per the video) quite windy at the time.
Healthcare workers at the hospital lavished praise about the couple's warmth and consideration. One well-wisher noted that William and Kate sported matching outfits of navy blue and deep green. You can watch William's response below:
"They were so welcoming. They were so warm and friendly," ophthalmic imaging technician Amber Otto told PEOPLE. "Even when they were being rushed out, they made sure they made time for everybody ... The Princess asked me what I did. They were talking to as many people as possible."
Open Door founder Lee Pennington told PEOPLE that it was "surreal but beautiful" to host the future King and Queen, explaining, "It was a bit nervy at first but then after a bit it was chilled and interesting and great."
"It was beautiful to speak candidly with people in the world that they inhabit. And what came across loud and clear is that they care about, and value, the same things in the world that the people involved in this organization do," Pennington said. "They care deeply about 'how can we make this happen, work better and make sure we are building the best to support people in what is the biggest health needs of our time—the mental health needs of young people. But boil it down, and they care about the same things that we do."