I have some items in GridField which I want listed in that page types template.

How do I do this??

Assuming you have a relationship set up called 'GridFieldItems' eg:

private static $has_many = array(
		'GridFieldItems' => 'GridFieldItem'
	);

You can access that relationship in the template with:

<% if GridFieldItems %>
  <% loop GridFieldItems %>
   do something...
  <% end_loop %>
<% end_if %>

I've tried that but all it does is output 1 thing as there's one GridField item...

So for example

    <% loop MailingList %>
        $Email :):):)
    <% end_loop %> 

Will output

:):):)

It doesn't actually access the data, just does 1 loop because theres one GridField item and that's it

---
Edit
OOOHHHH it worked after I put in the 's' to MailingList haha

Thanks for the help!