Tags are used to organize related topics. By default, instructors in the course can create tags, while any site participant can apply a tag to their new or existing topics. You can tag entire topics but not individual posts within topics.
If you haven't yet set up tags for your course, see How do I manage tags for my course in Conversations?.
Select the Conversations tool from the Tool Menu of your site.
See How do I post a topic in Conversations? for the complete steps to posting a new topic.
Click Publish.
Click on an existing post in the topic list.
Click Publish.
Click on an existing post in the topic list.
Click the remove icon.
Click Publish.