learn some basic exercises watching vids and schematics on the internet. Train 3 to 4 hours a week. Lift the weights to failure, repeat, until the end of the workout, which should last aproximatively 45 to 60 min a day. Either train in a gym or buy yourself a rack and some barbells and dumbells and a solid bench to train at home.
Repeat the same routine every week. Increase weights progressively until you reach your natural plateau.
Nutrition; drink enough water, mostly eat chicken, tuna, some vegatables ,beef and pork once in a while. If you re an ecto or meso you can have as many cheatmeals as you want. if you re an endomorph skips cheatmeals and snacks. reduce your fat and carbs intakes. Run. You cannot target fat loss if you re a woman, you ll have to do lipo. Dont empty your wallers on supplements/fat burners -which arent steroids- they re useless...
Repeat, repeat, repeat... for weeks, months, years. and voila.
OMG! I gave up the ultimate secrets about building muscles the natural way!