Simulations and role-plays are very useful for speaking activities, where the emphasis is on fluency and not so much on accuracy. They can be fun and your students could really grow to like them if you adapt them to their age and level of knowledge. Firstly, let's refresh our knowledge of the difference between simulations and role-plays. When it comes to simulation students speak and react as themselves, but the group role, situation and task is imaginary. In role-plays, on the other hand, students are given a situation plus problem or task, but they are also allotted individual roles, so they are not acting as themselves, but as though they are someone else. The most important thing for both is that students imagine themselves in a situation outside the classroom and use language appropriate to this new context. You can give your students a variety of roles (profession, status, personality, attitude, mood), variety of physical settings, variety of communicative functi...