Joe Kohen / Stringer / Getty ImagesWhen you hear the term “networking event,” you probably think of career fairs, alumni dinners, and professional conferences. But as it turns out, concerts, airplanes, or even the checkout line at Whole Foods can be equally suitable places to build your network. That's right: the savviest professionals are able to strike up conversations with strangers almost anywhere and turn those encounters into networking opportunities. Here’s how: 1. Know what you want.