[header] How to make a themed club with your sister [title] Pick a theme. [step] In order for your club to be successful, it should be based on a subject that you and your sister are passionate about. If you're interested in gaining a few members, it may be best to select a topic that you know others can relate to. 
For instance, if you both love baseball and know that there are other fans in your school, you could start a baseball-themed club. Note that you may have to make compromises, as you and your sister may have different desires.