To create tags in Joomla, follow these steps:
1. Log in to your Joomla administrator panel.
2. From the top menu, go to Components > Tags.
3. Click on the “New” button in the top left corner.
4. Enter the name of the tag in the “Title” field.
5. Select the tag category from the “Category” drop-down menu.
6. Optionally, you can add a description and a colour for the tag.
7. Click on the “Save” button to create the tag.
Once you have created tags, you can assign them to articles, categories, or other content types in Joomla. To assign a tag to an article, edit the article and select the tag from the “Tags” tab on the right-hand side. You can also manage tags in the Tags component, where you can edit, delete, and search for tags.