- Click on one of the SE 'Add links between articles' (AI) on Special:Homepage.
- When the Add links popup will be displayed on the article - click through the screens to "Get started"(and click on it) or click "Skip all".
- Click on 'View history" - the intro will be present. Click "Skip all" again.
- Click on 'Read' - the intro will be present again.
- the order of the steps #3 and #4 is important - if after step #2 click on 'Read' - the intro won't be shown.
- "Don't show again" box works - the intro will not be shown after clicking in the check box.