So…
Social Incentives - increases individual effort
Peer pressure from team-mates, praise/recognition, social approval, social support
To feel more connected to teammates
Positive reinforcement to help you perform well
Also decrease social loafing
Social support within the team
Social loafing can occur when others are taking up slack then when won't put in that effort
If increase social support, increase trust in teammates (to perform well + support) - social loafing should decrease
So feel motivated to perform at your best