The study looked at ways to increase cooperation in tough social situations. They found that leading by example and talking face-to-face can help people work together better. These methods also work in a new game called the Claim Game. Combining both methods doesn't work better than using them separately. Talking with a leader can make them cooperate more. People in the game tend to keep their promises when they talk. Leaders' preferences affect how much people cooperate. Talking online can also help people work together better.