Following a discussion enables you to stay in the know as new activity takes place in that discussion / thread.
You can follow a discussion by:
1. Clicking on the discussion / thread you would like to follow
2. Clicking the “Follow” button above the title
Once you are following a discussion, you will be notified about any updates that happen in your “My Feed” tab and notification menu (on the top right-hand side of the page, under your profile image).
Awesome! Start following discussions now.