Quick Muscle Building - Fastest Way to Muscle Up

I came across a friend and he asked me, "Is there a way for me to have muscles here and here?" and he was pointing at his biceps and legs.
He is too skinny and he did almost every workout in the gym.
He even joined almost all the dance exercises and aerobic classes for what he thought are quick muscle building exercises.
But I think that what he does is more cardio that he really loses weight and mass.
Actually, everybody has muscles.
Our muscles connect our joints and make our bones move to perform daily activities.
All we need to do for quick muscle building is to look for a good workout that would focus on all the muscle groups that we want to develop.
I know several fitness gyms that offer pump classes using dumbbells.
These pump classes can considerably be one total body workout as every muscle group is being focused on.
But then, attending a pump class will not be as effective as buying your own workout program.
Why? Although pump classes always start with a warm up using slightly lesser weights than what you'd be using during the whole duration of the class, still these warm ups may not be enough to really prepare you for the workout.
It is because these pump workouts are designed for those who really know the basics of lifting weights.
If one makes a wrong execution, like for example a wrong dead-lift, it would really be dangerous for his spine.
More so, he might even get injured.
This is how different a personal workout program is.
If you buy your own workout program, you will be given exercises with sets and repetitions assigned specifically after you got assessed by a personal trainer.
This means all your workouts will be specifically designed for your height, weight, body mass as well as your lifestyle and personal goals.
You can even really tell your personal trainer that you want a quick muscle building workout program and you will see how fast and easy it will be for you to achieve the muscles you've all been aiming for.
With your motivation to shape up and with your own workout program with your personal trainer, you will have fun and you will see the results in no time.