The English word 'about' is very familiar. But there's an unexpected way to use it in spoken English. Join Feifei and Neil to learn this English expression, improve your English vocabulary, and find out exactly who the mysterious 'Mark' is! [Images: GETTY IMAGES] For more videos and content that will help you learn English, visit our website: http://www.bbclearningenglish.com/ #EnglishVocabulary #LearnEnglish #BBCLearningEnglish