ChatGPT is smart enough to give you the answers you want without setting it up, but it can give you more creative or professional answers if you do. By making the setup easy, even those with little AI knowledge can get answers tailored to their situation.
Give OA the name and role you need and get the answer you want.
For example, if you set the role as an English teacher and say "Recommend me 5 English words to study" as a message, it will give you a better answer than if you did not give a role.
