The Circle is a fun way to meet new people. Enter a random group of strangers, and see if you can make them your best friends.

Group Chat.
You can send a message to the whole group and have a chat with everyone.

Direct Chat.
You can have direct chats with each member of the group. Get to know everyone, and find out whether you two are going to be friends.

Rate Relationships.
Rate each relationship you have with your new group members, and if people like you, you're going to be at the top of the Leaderboard.