By default, the full posts will be shown up.  So you would like to make the Continue reading or Read more to shortent these post.

When creating/editing a post, place your cursor at the point in your post where you want to end your excerpt, click the button on the toolbar called “Insert Read More Tag“.

continue-reading-button

A horizontal dash line will appear in your post, this is where your “Continue reading” or “Read More” button will appear on the Homepage.