I'm here in Falmouth now, and landed at 5B6. I actually called Cape TRACON yesterday and asked them so I could get it straight. They told me I just needed to be squawking and talking by the time I hit the 30 mile ring. I then rephrased my question to verify that simply picking up flight following would be enough and he said absolutely. As it turned out I ended up coming in IFR anyways because of weather.
