Dont worry about where you're trying to bulk up.
You should be focused on just putting on size. If you're a real 8% bf then you can afford to put on a bit of fat in the process. Aim to eat around 3500 kcals a day of clean food, mainly protein, startchy carbs and good fats. I'm not going to give you examples of each of these foods cause like the guys already said there's plenty of sources for that kind of info on this very site.
As far as exercises - Squat, dead lift, bench, overhead press, pull ups and rows.
Thats all you need for at least the first year basically, if you want to chuck in some curls and tri-extensions for good measure it certainly wouldnt hurt but the above exercises should be your main focus.
What program are you following at the moment and how long have you been lifting?