主权项 |
1. A computer-implemented method comprising:
receiving, from a user device of a first user of a social networking system, a promotional identifier associated with a promotion; entering the first user into the promotion, wherein the user has an opportunity to win an award in response to participation in the promotion; receiving, from the user device, a selection of a second user of the social networking system; receiving an indication that the second user has completed an action within the social networking system, wherein the action is associated with, or a result of the second user participating in, the promotion; and increasing a likelihood of the first user winning the award or a quality of the award in response to the indication that the second user completed the action. |