Well, in this case it seems like you work with conversation mostly? If so, pointing out to things and making others express what they are seeing would be something.
Also movies, clips, could be of help. I took classes once, where we would watch a movie and then would discuss the gist of if, with no judgement streak to it, just a way to make us talk, to make us express what we felt the film was about.
Other thing you could use is printing some comics (take Dilbert for example, or others that pictures some day-to-day events) and make then read and then re-state what they have read with other words (their own words).
This would make the teacher/tutor involved as well, it´s not a tool where he/she gets only observing, the educator is a "in-between" channel. An active one.