switching conversational partners in the English classroom has long been regarded as effective methods to trigger more learner-learner communicative interactions.
I would suggest he design of simulations based on texts you usually deal with in class. that is, as an intructor, create a scenario and define roles so that learners can participate in a worry-free context in the target language.
See some of my works.
Hope it helps,
Laura
Data Angelini et al Student perceptions of gain in telematic simulation
Conference Paper Scenario Design in EFL Teacher Training