Avoid frustation If something goes wrong.
Avoid not repecting turns and students participation.
Avoid not have a good communication between your mates.
Don't take a passive role, as teachers and students.
Don't be unrealistic.
Don't be too ambitious, focus on what's really important when it comes to topics to work on.
Don't use disrespecftul behaviour such as imposing an idea.
Don't talk when it is not needed, know how to respect your turn to speak.
Don't limit students' freedom to carry out the project's tasks.
Do expect too many final products (focus on one or two).
As a teacher, do not overwhelm students with information nor give them so little when it comes to how to collaborate with the other group members.
Don't always be silent.
Don't give all the responsibility to just one member of the group.
Don't usurp control
Don't be disengaged (not reading or preparing beforehand)
Don't be late
Don't expect the discussion leader to do everything
Don't control everyone
Don't come unprepared
Don't have too many target languages within one project
Don't create a one-sided VE (only one class gets L2 practice)
Avoid broken links in the lesson plans
Don't create lesson plans that are ambiguous and hard to follow for those who have not developed them