Wikipedia:Tips/Displaying this on your user page
To add this automatically updating Tip of the day box to your userpage, go to your user page, click edit this page, and add {{Tip of the day}} to your userpage's source text. (The text you see in the edit box when you click edit this page is called "source text", because it is a lot like programming code, which is called "source code"). Be sure to include the double curly brackets.
Read more: Template messages