A rich vocabulary will help you express your thoughts more accurately and fluently. Make it a habit to learn new words and expressions regularly. Read English books, newspapers, and online articles to learn a variety of vocabulary in context. Keep a vocabulary diary to record unfamiliar words and repeat them regularly to solidify what you have learned. Go beyond individual words and become familiar with common expressions and idiomatic expressions used in daily conversations. These expressions often convey meaning that is not immediately apparent from the individual words. Using them correctly can make your speech sound more natural and engaging.