I need to do a wp query that will get any post that has one tag or more.
My current code work for one tag, but I've try for multiple with the codex and I can't do...
can you help me ? Thank's !

    <?php
    global $post;
    foreach(get_the_tags($post->ID) as $tag) {
    }
    $recent_posts = new WP_Query(array(
    'cat'  => 20,
    'tag_slug__in' => $tag->name . ', ',
    'showposts' => 2
    ));
    ?>