The objectives of this paper are to explore the characteristics of patterns of participation in social and game-play spaces outside the classroom of 10 fifteen-year-olds engaging in mobile game-based learning, and to determine whether there are gender differences in their use of social and game-play spaces. The data indicate some evidence of gender differences in their use. The boys in the study tended to engage in mobile game-based learning more than girls in game-play spaces. The girls tended to use the social space more than the boys and were especially more active in their use of the in-game chat system.