We (Pemberton Township, Burlington County, New Jersey) try to have a booth at every public event where large crowds are expected. When we have other duties at an event, we usually have an Awareness/Recruiting booth.
At the Whitesbog Blueberry Festival (where the modern cultivated blueberry was developed), we asked everyone who came near our booth, "Are you prepared for a disaster?" We handed out brochures and recruited people for local CERT training.
Being visible is our key.