Go to CS talks at nearby universities. Most have talks that are open to the public. These usually include "job talks" in which people applying for teaching jobs present their recent work.
Another thing to watch for, besides talks specifically open to the public, is lecture series taken for credit, such as {EE,CS}{198,298} in the above page. I took EE298.2 last semester for example, a communications/networking/DSP seminar, which had visiting scholars presenting their current research at almost every meeting. Nobody would have cared or probably even noticed if a random person showed up to listen.