Enhancing your common vocabulary in English involves consistent practice and exposure to the language. Start by reading regularly to encounter new words in context and noting them down. Use vocabulary-building apps like Duolingo or Quizlet for interactive learning. Practice a "word of the day" habit and incorporate new words into conversations and writing. Listening to English media, such as podcasts and movies, helps you pick up everyday phrases. Word games like Scrabble or crosswords make learning fun. Additionally, focus on understanding word roots, synonyms, and antonyms to broaden your knowledge. Stay patient and practice daily for steady improvement.