How do i pass 2 values to a view? I have a Drupal View that displays the 2 most recent articles from our db. How do i allow a user to select which article they would like to display. And, if the user does not choose the 2 articles then the 2 most recent will be shown.

I tried to use filters and the "Expose this filter to visitors, to allow them to change it" option. But I cant seem to figure out how this would be done. 

Thanks.
I would pass the argument in via the URL, you can pass multiple args in using '+'. So http://example.com/my-view/[nid1]+[nid2]