Steadily increase your weight load by 5% - 10% per set, of. For example
Upright Row:
80 lbs X 8
86 lbs X 8
92 lbs X 8
Do this for a week, then the next week start at 44 rather than 40.
Please keep in mind this is just an example don't follow this, this is only to give you an idea of what i mean. Basically you gotta lift bigger to get bigger, but it has to be gradual. Also, protein is needed, so eat nice lean red meat, tuna, chicken breasts. Milk, and plenty of water.
This is just a quick outline. Hope some of it helps, any questions, please ask.