The Duchess of Cambridge put on quite the show when she and Prince William attended the Rugby World Cup in London on Saturday. The royal couple sat together in the stands and attentively took in the match, but the real highlight was Kate's less "princessy" facial expressions. Whether she was biting her nails or cringing and covering her eyes, Kate did not hold back, showing us just how much she really loves sports. Earlier in the day, the Duke and Duchess of Cambridge stepped out to meet with young people who have suffered from mental health issues in honour of World Mental Health Day. Read on to see all of Kate's epic faces, then check out the best pictures of the British royals this year.