The UC Title Component is relatively simple, but still very useful. It displays the Title given to the page in a prominent style. You can see it in action at the top of each of these pages on the CQ Support site.
Click and drag UC Title from the 'General' Components in the Sidekick. The Title you gave to the page when you created it should display immediately in large red text, like the 'UC Title' at the top of this page.
Double-click the title to edit the style.