Folklore is all around us. When we listen to a story about our grandparents, we are hearing folklore. When we eat turkey on Thanksgiving, we are practicing folklore. All of these are examples of traditions which are learned from family or friends within a community. And they are all learned in a traditional manner, through word of mouth or by watching.
Most people have traditions that can be used as a focus for an interview.
The main thing to have the students remember is that a tradition is something that is learned informally and is passed on from one person to the next. Most likely, someone in the student's family practices important traditions - even the student him or herself.