How to show categories in each post

I want to show my categories at each of my posts,

So far I have tried the following:

@if(isset($post->category->name_slug))
   {{ action('PagesController@showCategory', ['id' => $post->category
       >name_slug ]) }} {{ $post->category->name }}
@endif

but still no result, any idea?

via Chebli Mohamed