This is technically a graduate school problem, but I feel those in the working world can relate to this better.
I am in a professional program in graduate school. Starting on Sunday, I'm attending my industry's biggest annual conference in the U.S, and possibly the world. Professionals who work on multiple aspects of this industry will be there, and I know academics from each of the worlds' habitable continents will be there. The conference is from Sunday through Thursday, and there will be a wide array of lectures, workshops, meetings, and receptions. I expect to network throughout the whole event. Frankly, I find the prospect of all of that networking daunting. Everyone else will be there to network as well, and I do not know how they do it.
How do I survive four days of non-stop networking? If it helps, I have some definite goals on what I want (an internship and to promote my research). I also happen to have family in this same city as the conference, so they should help give me support.