how to display post tags unlinked

http://codex.wordpress.org/Function_Reference/get_the_tags

The following example displays the tag name of each tag assigned to the post (this is like using the_tags(), but without linking each tag to the tag view, and using spaces instead of commas):

<?php
$posttags = get_the_tags();
if ($posttags) {
foreach($posttags as $tag) {
echo $tag->name . ' ';
}
}
?>