Add/Delete tags
From HAA Best Practices Wiki
You can add or delete tags by going to Joomla->Components->Nice Talk and then selecting the "View Categories" link in the left-hand panel. (The terminology here is confusing, Nice Talk uses both the word 'Tag' and 'Category' to refer to the same thing.)
To delete a tag, click on the 'delete' link to the right of it.
To add a tag, enter it in the text box at the bottom of the page and click the 'Add' button.
