How do I make my club look and feel like mine?
Under Manage: Info for the name, description, picture and category, Banners for the images across the top of the club, and Resources for files and links members need to hand.
There is also a Promote section for pushing the club to a wider audience, and an announcements thread is the conventional place for rules new members should read first.
Keep names, pictures and banners inoffensive and free of other people's intellectual property — clubs that break that can be required to change it.