<?php the_tags(); ?>
<?php the_tags( 'Tags: ', ', ', '<br />' ); ?>
<?php the_tags( 'Social tagging: ',' > ' ); ?>
<?php the_tags( 'Tagged with: ', ' • ', '<br />' ); ?>
<?php the_tags( '<ul><li>', '</li><li>', '</li></ul>' ); ?>
more https://stackoverflow.com/questions/14033470/how-to-customize-wordpress-function-the-tags