If you're not sure what to say or what to write, give an example.
Add examples to support your ideas for IELTS writing task 2. Give examples from your life (like a story) if you don't know what to say during part 2 or part 3 of the speaking test.
Examiners like examples because they're interesting. From your point of view, examples can help you to keep talking, or to add a few extra words to your essay.