Configure your website Rewards System from the Admin Panel > Social Networking > Rewards page.

Here you can customize the Language & Phrases, such as want you want to call Points, and the configurations.  Reward members for posting, viewing, commenting, liking, and sharing posts within your website, integrated in the Articles, Listings, Classifieds, Scrapbooks, Photo Uploads, Video Uploads, Audio Uploads, File Uploads, Calendar Events, and Forum apps. Choose whether the reward type is points or credits, customizable for each app/action.  Configure the number of points or credits per action.  Choose whether to display member points on your website with member info.  Integrate a Member Points Leaderboard by copying/pasting the Placeholder Text provided on this page to the Add/Edit page where you want it to display a list of members with the most points; choose how many to display.