Social networks are nowadays popular among people of all ages. Although they are often used by children under the age of 13 who create fake profiles without the knowledge of their parents, it is an interesting fact that social networks are also used by future graduates in Masters of Primary Education for checking their status or playing on line games. Considering that teachers, along with the parents and the educators, are role models to children, it would be curios to do a research on what do they use social networks for. This work shows the results of a research done among future Master of Primary Education graduates on the usage of Facebook, the time spent browsing the social networks, playing on line video games, the time of the day they usually play on line games, purchase of expansions of DLCs for games and if they consider themselves addicted to on-line gaming.