Build vocabulary

The people who have vast vocab & know-how to pronunciation are naturally considered as intelligent by others, because of their vocab knowledge & the proper way to use it. Good vocabulary is one of the traits of intelligent people.

To master your vocabulary there are few things you need to start right away, like - read every day, develop practical vocabulary, learn new words every day, diversify your reading list, read magazines, newspapers, online articles.

The essence of reading is you encounter with technical jargon & new words & when you identify such words use a dictionary to help you out in understanding it. This way you can improve your vocab.