This is a collaborative task built around a set of pictures. First, you and your partner talk for about a minute about one or two of them, answering a focused question. Then you look at all the pictures and discuss a wider task for about three minutes, ending with a decision.
The pictures are a starting point, not the subject. The examiner is listening to how you interact: developing ideas together, negotiating, and weighing up options in precise, natural language.
The first question is short and focused on one or two pictures. Don't describe them in detail: react to the question, speculate about the situation and bring your partner in quickly. A minute goes very fast.
In Task 2, use the pictures as springboards to the real issue, such as the effects of tourism or where transport money should go. Talk about causes, consequences and who is affected, not about what the photos show.
Rather than working through the pictures one by one, weigh them against each other: which issue is most urgent, most widespread, most harmful? Comparing and ranking gives you something real to decide on at the end.
Show your full range: concede a point ('Fair enough, though...'), challenge one ('I'm not entirely convinced that...') and summarise ('So we seem to be saying...'). Handling the conversation skilfully is part of what's assessed.
Task 2 always ends in a decision. Signal when it's time to decide ('Shall we try to narrow it down?') and make sure your choice follows from what you've discussed. If you disagree, explain why.
Here there's no partner, so record the tasks and argue with yourself: make a point, imagine a counter-argument and answer it. It trains exactly the flexibility the real discussion needs.