Lockerz is an invite only site. You need to gain enough points to save for a gift that you choose. Every month they have redemptions which open at a random date, you can redeem your gift if you are lucky enough.
Login daily 2 ptz
Answer daily question 2 ptz
Watch a video 2 ptz
If you invite 20 members you become a Z lister, all ptz for logging in, daily questions and vids will be increased by 2, i.e you get 4 ptz for each action.