This kind of composure will come in handy, if she's called upon to perform bridesmaid's duties in Westminster Abbey.
Kate Middleton's younger sister Pippa was gracefulness itself as she helped get the Christmas fun started at the annual festive ice-rink in London's Somerset House.
Also having fun, if rather less steady on her feet, was actress Jaime Winston.
Meanwhile, with temperatures plummeting, singer Paloma Faith was wrapped up warmly as she performed before a huge Christmas tree.
Running until January 23, the attraction includes a skate school for beginners, and DJ nights every Friday and Saturday.
In January, Norwegian composer Terje Isungset will be performing with instruments made from ice.