im thinking about lifting some weights .. maybe take some steroids 
Lifting weights sounds like a good idea if you want to target certain muscle groups.
yea, but the roids will speed up the process
You can use weighted bars, dumbbells, and weight stacks to use the force of gravity and create muscle through concentric and eccentric contraction! 
yea i guess thats true
What else do you want to know? There are tons of sports that use strength training as part of their training routine, like American football, baseball, lacrosse, hockey, and more.
how should i start out pumping iron?
progressively increasing the force output of the muscle through incremental weight increases and uses a variety of exercises and types of to target specific muscle groups. Strength training is primarily an anaerobic activity, although some proponents have adapted it to provide the benefits of aerobic exercise through circuit training.
Strength training is typically associated with the production of lactate, which is a limiting factor of exercise performance. Regular endurance exercise leads to adaptations in skeletal muscle which can prevent lactate levels from rising during strength training. This is mediated via activation of PGC-1alpha
lifting straps) are sometimes used to assist in gripping very heavy weights. Wrist straps can be used to isolate muscle groups like in "lat pull-downs", where the trainee would primarily use the latissimus dorsi muscles of the back rather than the biceps. They are particularly useful for the "deadlift". Some lifters avoid using wrist straps to develop their grip strength, just as some go further by using thick bars. Wrist straps can allow a lifter initially to use more weight than they might be able to handle