Chose 'Summary' from 'Reading' settings, only 'Full Text'

Use the “Read More” tag when editing your post. There’s a button for it on the visual editor, or you can enter <!--more--> in the text editor.

That’s a good suggestion to do it manually, but I have more than 30 posts and am adding new ones every couple of weeks. I’d like an automated solution.

Gotcha.

You’ll need to change

<?php the_content( __( 'Continue reading <span class="meta-nav">&rarr;</span>', 'twentyten' ) ); ?>

to

<?php the_excerpt(); ?>

on line 144 of loop.php (assuming you haven’t moved anything to change the line numbers already)

Cool. I saw it said in the codex about this!

But what about specifying the length of the Excerpt. I think default is 55 words or something.

I almost added that to my last post, but didn’t at the last second. ??

Search your functions.php for

function twentyten_excerpt_length( $length ) {
	return 40;
}

change the return value to however many words you want.

You’re awesome! Thanks! I mean, I did see this in the Codex pages, but there was Soooo much information about other stuff that it felt overwhelming. Thanks for helping me out!

No problem! Glad to do it!