I create activities that require students to work together.
Group work allows students to actively engage with the material while also learning from each other. Tasks that have students work together to create an end product can be fun and meaningful. They create opportunities for students to organically discuss and think about the material.
In addition to being clear about learning objectives and instructions, provide students with rubrics and incorporate feedback moments into the assignment. Also, create online spaces that facilitate group work, like lockers for file sharing and discussion forums.
You can also include a rubric for assessing the group process and individual participation.