For women, smelling nice, confidence and sensible heels are sure-fire signs of classy couture. While for men, crisp white shirts, holding the door open for others and taking pride in their appearance are all ingredients that go into making gents suave. Age is also a factor in levels of class. Brits believe the optimum age for classiness is 45 and that men and women generally get better with age, though men more so. Dignified decorum on social media is a must for a quarter of Brits, while a fifth thinks wine knowledge is a sign of sophistication.