To create interactive quizzes or activities to engage employees during training on 'Risk-Based Thinking' in ISO 9001:2015, you can incorporate games that test topics related to ISO 9001, making the learning process engaging and practical. Use on-job training where you start with what employees do, discuss the purpose of their tasks, identify what can go wrong, and how ISO 9001 can help minimize errors and enhance performance. Additionally, you can develop a simple matrix to evaluate risks and opportunities, and involve employees in creating actions to minimize risks, which can be part of the interactive activities.