From CommenceCRM-Help
Following Conversations
At the bottom of the portlet you will notice these shortcuts:
Following: These are the users you have chosen to follow and receive their posts or messages Followers: These are the users who have chosen to follow you and receive your posts.
To show messages from a particular user, click Following then select the user you wish to follow. To hide messages from one or more users, click Following and remove those users from the Selected Users box. Then Save Changes.
To view who is following you, click on Followers.