Ok, many reps. From 8-12. Heavy wheights and few reps just work out your mucles fibres type 2B and makes more of them. They are the hardest to build actually. If you want to be explosively stong and big (not defined), that's the way to go. You want to work out your type 2A fibres, to look defined and clearly see your muscles, right?
Free wheights, many reps, and creatine yes, works out pretty well. If you use creatine, remember to drink a lot of water. Maybe your genetics wont let you have a musculer (spelling?) body. It's easier to increase type 1 fibers. Not so explosive but endurent fibers.
There are many programs. I usually do upper and lower body every other day. Have at least one day rest before you work out the same muscle again. There are no need to use protein shakes or other crap. IF you eat well and balanced, you get all the proteins, fat, carbs, minerals and vitamins you need. Both essential and non-essential vitamins. Of course, if you don't... then it's not a bad idea.
Remember, if you want to look defined, you need to reduce your body fat. Since you said you are thin, then that's probably not a problem right now. The first place fat is stored and last place fat is burned, is from your stomach area.
Free wheights, many reps, and creatine yes, works out pretty well. If you use creatine, remember to drink a lot of water. Maybe your genetics wont let you have a musculer (spelling?) body. It's easier to increase type 1 fibers. Not so explosive but endurent fibers.
There are many programs. I usually do upper and lower body every other day. Have at least one day rest before you work out the same muscle again. There are no need to use protein shakes or other crap. IF you eat well and balanced, you get all the proteins, fat, carbs, minerals and vitamins you need. Both essential and non-essential vitamins. Of course, if you don't... then it's not a bad idea.
Remember, if you want to look defined, you need to reduce your body fat. Since you said you are thin, then that's probably not a problem right now. The first place fat is stored and last place fat is burned, is from your stomach area.