Do you mean the friendship cards, to add someone to your friendship list? If so, you click on the persons name, scroll to "add "so&so" to your contacts", then a new window will open and ask if you're sure you want to add them and it'll also ask if you'd like to add them to your friendship list. If you do, click yes. It'll send them a request to be your friend. HTH.

Also, to see your contacts and friends you can click "Quick Search" (top right), scroll to "Contacts & Friends" (under networking), this'll open a window and show all your friends and contacts listed. You can also click "Open Contacts" (under quick search) and a little window will open that'll show your contacts/friends and if they're on/off line. HTH.