What benefit(s) do you hope to receive from membership in the group? i.e. Meet new friends, meet people with whom to go dancing, learn new moves, meet people with whom to practice?
All of them plus a dance partner too.
What day(s) of the week and time(s) of day(s) would you be most likely to attend events and how often would you like to attend those events.
weekends are best, some week days are ok