In order to proper note the experience, it helps to make use of a notebook. In this way the first impression can be noted. Any other occurrences that would lead to a change in the first impression also noted. When writing a observational essay, it is good to give a chronology of events as they occur as well as providing a detailed description. Taking notes ensures that later impressions do not distract from what the reader would experience for themselves were they there. At times a writer may have an opinion that is later influenced to change by listening g to what other experienced. By making notes, a writer ensures that he or she is giving a succinct account of what occurred in their case.