Uses of mobile devices in transmitting activities of a player in a wagering establishment to a social network

In some embodiments, a computer-implemented method for operating a client application program on a mobile device includes: determining, by the client application program on the mobile device, that a player has participated in activities in a wagering game establishment; determining, by the client application program on the mobile device, information about the activities in the wagering game establishment; and transmitting, by the client application to a social network, an electronic message to post on the social network information indicating the player activities in the wagering game establishment.