Answer:

Dancers will ask to you to dance you not to be sitting on the sidelines. You do not need to come with a partner. And if you do come with a partner, it is a good idea to split up and each dance with more experienced dancers. Two brand new dancers can not help each other. The etiquette at contradances is that for every dance people generally change partners and dance with someone else, even if you do come with a partner. It is part of the fun to dance with many different partners.