To create interactive quizzes or activities to engage employees during a training session on 'Risk-Based Thinking' in ISO 9001:2015, you can incorporate games that test topics related to ISO 9001. Use different approaches such as classroom training, on-job training, and interactive sessions. Start with what employees do, the purpose of their tasks, what can go wrong, and how ISO 9001 can help minimize errors and enhance performance. Additionally, you can use tools like SWOT or PEST analysis in brainstorming sessions to discuss risks and opportunities, making the training more engaging and relevant.