public void Speak()
        {
            if (PhrasesHeard.Count == 0)
            {
                Console.WriteLine($"{Name} looks at you quizzically.");
                return;
            }

            var textToSay = PhrasesHeard.ElementAt(++TimesSpoken % PhrasesHeard.Count);

            Console.WriteLine($"{Name} says: {textToSay}");
        }
 public void LearnPhrase(string phrase)
 {
     PhrasesHeard.Add(phrase);
 }