Display only current page -> posts tags in page

I am having one page for example sample page. I am displaying 3 posts in that page. All 3 posts having 2 tags so total 6 tags.

Now I want to display all those 6 tags in sample page , I have tried below code :

 <?php echo wp_get_post_tags(1 , $args ) ?>

But above code printing Array instead of post tag. Above 1 is my post id. Also I want to know that how I can pass all post ids of which tags I want to retrieve.