As a volunteer myself for the NVSA, I suggest that our first priority is to come up with a good plan. We need a globally coordinated nonviolent campaign if we are ever to see a "world that works for everyone", and it is clear we better think several years ahead here at the beginning.
Nonviolent action is a thoughtful process. It includes carefully identifying the changes that the world needs. It includes identifying the powers that are blocking those changes. It includes training for the participants. It includes using all the power of persuasion that we can muster before we fall back on civil disobedience as our final resort. And then we have to be smart about what form that civil disobedience will take.
We must go through all these steps on a global scale, so that if we do need to engage in global civil disobedience, which seems possible, we will have confidence in the rightness of our actions and we will have the general support of the entire world.
Meanwhile, I think the NVSA should also make itself useful to the Global Assembly in an everyday way. Organizing the Global Assembly is a huge task, and the NVSA should be out there, making the contacts. There is nothing like the personal touch. We need to visit prospective GA groups, and give presentations, including a pitch for new NVSA members. 
When working on behalf of the Global Assembly, NVSA members are effectively representing humanity as a whole. This gives us good cheer and much stamina in the face of what could seem rather long odds.
