When it comes to running the three MI meetings during CG prior to the MI week, to each his own in terms of flavor and taste. As with all things teaching, you might have to try a few different things to find your groove.
For the first meeting, students and you might be understandably nervous, just like the first day of school. I like to go around the room, having everyone including myself seated in a circle, and do the typical say your name, a reason why you signed up for/are excited for this course, and one interesting fact about yourself. After this activity, I might suggest discussing your expectations for the course and explaining in sufficient, but not complete, detail what the students should expect. If there is any time left, ask them to give suggestions about ideas you may (or may not) incorporate into the course. This meeting would be a good time to distribute any important paperwork and discuss any fees associated with the course, plus remind them about the need-based scholarships.
For the second meeting, play another type of name game because the amount of time between meetings surely does not help with remembering names. Ask the students to take care of any reading/reflection pieces that you deem necessary ahead of time, and possibly create an activity that involves your course and debrief it by the end of the meeting. Reminders about fees and paperwork are essential, along with the need-based scholarships.
The third and final meeting should be about tying up loose ends and possibly an activity to build excitement for the upcoming MI course.
If you need further guidance, please do not hesitate to see the MI Facilitator for more ideas.