List four things about the 'young English lady' from the source

Extract: There was only one occupant at the moment, obviously the young English lady referred to by the conductor. She was tall, slim and dark – perhaps twenty-eight years of age. There was a kind of cool efficiency in the way she was eating her breakfast and in the way she called to the attendant to bring her more coffee, which bespoke a knowledge of the world and of travelling. She wore a dark-coloured travelling dress of some thin material eminently suitable for the heated atmosphere of the train. M. Hercule Poirot, having nothing better to do, amused himself by studying her without appearing to do so. She was, he judged, the kind of woman who could take care of herself with perfect ease wherever she went. She had poise and efficiency. He rather liked the severe regularity of her features and delicate pallor of her skin. He liked the burnished black head with its neat waves of hair, and her eyes, cool, impersonal and grey. But she was, he decided, just a little too efficient to be what he called ‘jolie femme’. [Murder on the Orient Express, Agatha Christie (1934), page 8]Answer examples: The 'young English lady' has grey eyesShe could be around 28 years oldShe is well-travelled, as she wore the correct clothing and can converse adequately with the serversHer hair is made up in waves