How do you talk to ChatGPT? What is everything you need to know?

I have ask it to summarise Vatican II documents. I have asked it to suggest code for summarising survey results written in text. I have asked it about diet and exercise. I have asked about tingling sensation where I had shingles. I asked it to write a poem based on survey questions. I have asked it to check a letter of proper expression. I asked it if it remembers my previous prompts.