Social Points earn you exclusive social bonuses within Starlight! Your progress towards the current special prize you are working towards is shown by the progress bar at the top of the social area. Once you earn enough social points you will be able to claim the prize and work towards the next reward level!
The activity tab shows you progress that you have made (such as establishing a species) and also shows your friends activity.
The prizes tab shows you some of your up and coming prizes, including new Moths and decorations.
Social points are earned by sending gifts, and letting your friends know about Starlight.