Bodybuilding is my sport, this is what I do. People play soccer, play video games, sing, play instruments, I lift. Only difference between my hobby and other's is mine requires dedication in every aspect of my life from training, diet, rest and consistency. I don't need to tell people what my hobby is, they see it in the physical appearance and automatically know what I do with my spare time. The dedication is evident, to be successful in bodybuilding you need to be dedicated in all those aspects of life, and people automatically know you are when they see a bodybuilder physique. Bodybuilding is the hardest hobby, it requires the most dedication and effort, but hands down its the most rewarding.