Although this sounds like a very simple suggestion, at times group leaders may forget the fact that those whom they are leading may be shy or uncertain of their purpose. By reminding members of their collective goal the leader can enable the group to break an impasse (Jacobs 2012: 265-266). Introducing topics can also be used to direct the group's attention away from controversial issues. Sometimes more formal stimulating exercises, such as group decision-making activities, scenarios, and trust games are required to create and facilitate group bonds and break through final emotional barriers (Jacobs 2012: 266). Group members can also be given outside 'homework' to enable them to function more effectively. Group leaders should be aware of the fact that the group is a living, breathing entity and is constantly subject to change: group members may regress to earlier stages of...

It may be necessary for the group leader to change his or her style to accommodate this; conversely, in a well-functioning group, the group leader can ideally become less directive. The leader may even need to change the shape of the group -- for example, dividing it into two subgroups to allow for more intimate discussions or to diffuse tensions (Jacobs 2012: 265-267). If necessary, group leaders can meet with members individually if they feel that one or two members need particular attention or are providing particularly positive or negative feedback. Individual sessions can supplement group dynamics but they should not be a replacement for utilizing the benefits of the group's existence.
References

Corey, G. (et al. 2014). Groups in action. Cengage.

Jacobs, E. (2012). Group counseling: Strategies and…