Each group will have different requirments and each event is different. Check the relevant group to see the details of what you will need to do per event. Always check carfeully who is eligible to go and what kind of event you might expect.
Some events will be very casual and just to chat over, some food. Some events may be more structured with interesting speakers, no matter what kind of event, we always want enough time to get to know each other.
More to follow.