Abstract: In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products. A first computing system receives indications of multiple actions that a user of a second computing system specified as being candidates for performance during an event. The first computing system sends, for receipt by multiple computing devices, information that identifies the multiple actions, so as to cause the multiple computing devices to present the multiple actions. The first computing system receives, from each of at least a subset of the multiple computing devices, an indication of one of the multiple actions that a user of the respective computing device selected, from among the multiple actions, as being an action that the user of the respective computing device selects. The first computing system identifies a particular one of the multiple actions that received a greatest level of selections by the users.