Boosting participation in team meeting

Routine is comfortable, sometimes necessary, but also pernicious.  Applied to communication, it issues in low-level “background noise” that lulls us all to sleep...  which means that if you want to wake people up, nothing works like a surprise!  And if possible, a surprise that provides food for thought, and novel ways to share.
“Routine is not organisation, any more than paralysis is order.”Sir Arthur Helps, English historian and novelist
Remember
Make use of a concrete operational example
An axiom: take advantage of "events" and even more so of bugs that come up from day to day. Neither to judge nor to reprimand but to seek in them better understanding and ways to make progress.
These cases are often approached from the angle of analysis / corrective action, which is of course a necessary and productive method for creating improvements. But it is not the only one.       
Propose a learning exercise
A short exercise, a simple game... 10 or 15 minutes can suffice to wake people up! It might be a role-playing game to create some perspective on a difficult relationship, a case study to highlight different possible approaches...       
Allow autonomy
If you decide to take on a subject from an angle which is new, even fun, then you'll want to allow everyone their freedom in the "performances" and the debates. Ideally, there should be no pre-established expectations regarding the result. We explain how the exercise works (as concisely as possible!), people express themselves within that framework, then we debrief and conclude.       
Practice
A manager wants to revisit a problem that occurred with the team earlier this month: a dossier was not delivered on time and the QA department complained about the lack of information on this slip.
What do you think of his approach?
The QA department is criticizing us for not having informed them of the delays on the the “RX12” dossier.  It's true, we should have alerted them ahead of time.  I'd like to propose that we do an exercise: one of you will take the role of Denis (head of QA) who is expressing his discontent and we are all trying to make things right.         
This approach, while less effective than the second, is nonetheless useful.  Less effective because the manager has already given the conclusion (“we should have...”) and the exercise does not propose imagining how the problem could be avoided in the future.
Today, one of you is going to change hats... and play the role of Denis (head of QA).  And another of you is going to come see him 5 days before the deadline for the “RX12” dossier.  Each of you will prepare for the meeting... 
Taking on the problem from an “outside the box” perspective.  The proposed exercise could be productive but others are also possible: it's all a question of breaking habitual routines and starting to think about what needs to change.
I’d like us to come back to the problem that came up with the QA department.  I need clearer picture of what happened...  so I propose that we sit down and analyze the chain of causes and effects.          
Analysis of cause-and-effect is useful but fastidious to do in a meeting.  It would be better to have it done ahead of time, and at the meeting to discuss only the conclusions and the plan of action.