Be direct, have questions ready and read the hiring agreement throughly! Many people forget what they are agreeing to and just click accept and sign then complain later that they didn't know certain aspects like pay rate. Haves have the right to negotiate and many people don't use that right!
If you are a people person and love to talk, then the position is great! If you are just looking for a paycheck by serving a few samples, then this job isn't for you.