Would you look to someone for guidance and leadership if they did not truly care about the goals of the group? Of course not! Great leaders are not just focused on getting group members to finish tasks; they have a genuine passion and enthusiasm for the projects they work on.
You can develop this leadership quality by thinking of different ways that you can express your zeal. Let people know that you care about their progress. When one person shares something with the rest of the group, be sure to tell them how much you appreciate such contributions.