In the menu «Tooltipy» choose the submenu «Add» Enter now :
- The keyword as a title
- The description contained in the text area
- The list of synonyms separated by « | » (pipe) in the «Synonyms» text field
- The image expressing keyword as «Featured image»
- explore other features (Youtube video ID, case sensitive, is a prefix …)
- Publish
Now the tooltip expressing this keyword appears anywhere on your site content.