The comment form in WordPress, which you can customize, is a very useful tool. Not only does a WordPress comment form encourage your website users to participate in a discussion.
single.php
<?php
if ( have_posts() ) : while( have_posts() ) : the_post(); ?>
<h1><?php the_title(); ?></h1>
<a href="<?php the_permalink(); ?>">
<?php the_post_thumbnail( 'full' ); ?>
</a>
<p><?php the_content(); ?></p>
<?php endwhile; endif;
comment_form();
OR
comments_template(); // this is much better then comment_form()
?>
