How to add tags under the post

Might want to look at how the WordPress Default theme’s wp-content/themes/default/index.php makes use of Template Tag, the_tags() and comments_popup_link() to display those two items.

Related:
Stepping Into Template Tags
Stepping Into Templates
Template Hierarchy

Did you find the_tags example in the WordPress Default theme’s index.php?

You would need to provide a link to download the theme you are using.

Please paste all the code from the theme template file (probably index.php) that is displaying those posts into a pastebin, such as wordpress.pastebin.ca, and report the link back here. Maybe someone might spot your problem. Thanks.

Please provide one of these two things:

a link to download the theme you are using

or

paste the contents of your theme’s index.php in a pastebin and report the link back here.

Thanks.

Or review some of these threads:
http://ww.wp.xz.cn/search/the_tags?forums=1

Without test this, in your theme’s index.php
change this:

<?php the_content('Read the rest of this entry &raquo;'); ?>

to this:

<?php the_content('Read the rest of this entry &raquo;'); ?>
<?php the_tags(' ', ', ', '<br />'); ?>

Did you get a chance to look at any of the links provided above, in particular the_tags() link?

So this example from that article didn’t work?

<?php the_tags('Tags:', ', ', '<br />'); ?>