You are trying to become cool and you become the 'Designated Driver' for absolutely everyone at parties you go to. You must make sure that everyone makes it home from the party safely and that the police are not called to the house. You can achieve this by calling cabs for anyone wishing to leave the party (which will have a cool-down), closing certain doors and stopping any unnecessary disagreements that may occur at the party that will make people leave or have the cops called. There will be a 'happiness meter' to portray the satisfaction of the party-goers. The more happiness you get, the more popularity points you earn at the end of the night! You can earn more popularity points by having more people at the party. You can invite more guests to the party but it will become more difficult to contain them appropriately.