Show number of pages views
If you go your modules admin screen (/admin/modules), you'll see there's a module called Statistics that actually comes with core Drupal.  Make sure you enable it on this screen if it isn't enabled already.

This will print out page views at the bottom of your pages, but you have to make sure you visit the permissions screen to give anonymous users (if that's what you're trying to do) the ability to see that.  After the module has been enabled, you'll see the following set of permissions for your site(/admin/people/permissions):


Administer statistics
View content access statistics
View content hits


You'd just need to check the last one for whomever you want to be able to see the page views!

You can find additional information about this module on your own site's help pages: /admin/help/statistics