To view your Contacts list, go to the contacts screen, and then tap any of the groups to expand the group.
The Contacts list in Lync 2013 on the desktop is the same as the one in the Lync app (the Recent contact group isn’t available on your mobile device). If you have to make changes to your Contacts list, you’ll need to do it from Lync running on your desktop. You can only view your Contacts list from the Lync for Windows Phone app, not make changes to it from the app.