How the Duchess of Cambridge kept George, Charlotte and Louis calm in the royal carriage

According to a lip reader examining footage, the Duchess pointed out Union Jacks and kept talking to Prince George, eight, Princess Charlotte, seven, and Prince Louis, four, to keep them calm.

How the Duchess of Cambridge kept George, Charlotte and Louis calm in the royal carriage
According to a lip reader examining footage, the Duchess pointed out Union Jacks and kept talking to Prince George, eight, Princess Charlotte, seven, and Prince Louis, four, to keep them calm.