FHS: smarter contact selectors

A computer server configured to generate user behaviour data comprising:

• a network interface for receiving user inputs from a plurality of computer devices connected via a communication network to the server, during interaction with a game displayed on each computer device;
• computer storage configured to store the user inputs and a plurality of contact identifiers of contacts of the user of a first computer device of the plurality of computer devices, each contact being a user of the other of the computer devices for the user of the first computer device to interact with;
• a processor configured to generate user behaviour data based on the user inputs by identifying the progress of a user in the game to indicate for each user the likelihood of that user leaving the game wherein less progress indicates a greater likelihood of the user leaving the game;
• wherein the processor is configured to prioritize for display from the plurality of contact identifiers a set of the contact identifiers to be displayed at the first computer device, the set including at least a subset of the users of the other computer devices that are determined to be the most likely to leave the game;
• transmit the prioritized set of the contact identifiers to the first computer device for display at the first computer device, the prioritized set including the subset of users that are determined to be most likely to leave game;
• and
• cause the prioritized set to be displayed on a display at the first computer device.