Spending time with five different people a week. This could be anyone from your gym buddy or book club bestie to the person the next pew over at your church.
Nurturing three close relationships. Here, Kallim is talking about maintaining the tightest bonds in your life, usually with family and dear friends.
Aiming for one hour of social interaction a day. "That doesn't have to be all at once. It could be 10 minutes here, 10 minutes there," Kallim clarifies to BI. And feel free to combine your hanging out time with errands or other activities if you're busy.