In my video lessons for IELTS speaking part 2, I recommend that you prepare vocabulary 'themes' for common topics. Let's look at an example.
Describe a piece of clothing that you like wearing. You should say
- what the item of clothing is
- where and when you bought it
- when you wear it
- and explain why you like wearing it.
The first idea that came into my head was to describe my coat. And the first idea that I had about this coat was to say that it is useful or practical. So my 'theme' is useful / practical, and I've brainstormed other words and phrases related to this theme.
Ideas related to the theme of a useful / practical coat:
- hard-wearing material
- lightweight material
- various pockets
- a detachable hood
- it keeps me warm
- it comes in handy when…
- it’s perfect for carrying my…
- it folds up small enough to fit into my bag
Maybe you could brainstorm ideas in the same way, using the theme of a comfortable or stylish piece of clothing.