To use ChatGPT, follow these steps:

1. Visit the OpenAI website and access the ChatGPT interface.

2. Type or dictate your message/question in the text input box.

3. Click on the "Send" button or press enter to send your message.

4. ChatGPT will generate a response based on your input.

5. Review the response given by ChatGPT.

6. If you need to provide more context or ask additional questions, type them in the text input box and send again.

7. Repeat the process of sending queries and receiving responses until you have reached a satisfactory conversation point.