How can I make my Facebook Page become a fan of another person's Page?

[firsty]

In the Facebook FAQs, it says, "The ability to become a fan of another Page allows Page administrators to clearly affiliate with other brands, businesses, and public figures. By becoming a fan of another Page, your Page will publically support that Page," but it doesn't say how to make my Page a fan of another Page. Does anyone know how to do this? Thank you.
Thank you for your reply. I am aware of the option to make a Page a favorite, but I am trying to have my Page become a fan of another person's Page, which the Facebook FAQ recommends, but does not show you how to do.

[♫ __ j k]

The only thing I can think of..
Go to the page you wish to become a fan of, & under their profile, click 'Add to page favourites'
If you are the admin of multiple pages, you then have to choose which one you want the current page displayed on.
Then, on your page, under fans, the page appears in a box titled 'Favourite Pages'.
It's a good way to link all your pages together, if you are the admin of a few (: