This would imply, using more adjectives in your writing. This is where reading comes in handy. The more we read, the more comfortable we become with new and 'big' words. It is also better to immediately look up the meaning of new words since they will then become part of your memory bank and be available for later use. Writing that uses descriptive language is always more enjoyable to read.
Human beings understand things better when they can experience it themselves.
This is why we prefer television and radio to books because we are directly being exposed to the emotion. But writing can play the same magic on a person . A good writer is one who can make the reader actually feel all the emotions of the story or essay. Sense descriptions can make a point far more effectively than mere vague judgements. Once you are comfortable with writing paragraphs, you will be clear about how to focus your thoughts in a particular direction and it will be easy to write an essay.