Free cookies. That always attracts people to new clubs.
In all seriousness, passing out fliers or running a story about it in your school's newspaper is a good start. I like the idea of getting people into reading books about the subject. Perhaps, instead of calling it a debate, you could just encourage new members to read a specific book and then you all can discuss it (as well as potential new activities) at meetings. If it turns into a debate, great! Either way, you'll be discussing what you're interested in. As far as the freethinkers aspect of it, perhaps you should arrange a field trip of sorts to an event near you. That way, you don't have to arrange said event, you just have to get people to come with you. 'Freethinking' covers a lot of ground, so I'm sure you'll find something.
Good luck and welcome.
In all seriousness, passing out fliers or running a story about it in your school's newspaper is a good start. I like the idea of getting people into reading books about the subject. Perhaps, instead of calling it a debate, you could just encourage new members to read a specific book and then you all can discuss it (as well as potential new activities) at meetings. If it turns into a debate, great! Either way, you'll be discussing what you're interested in. As far as the freethinkers aspect of it, perhaps you should arrange a field trip of sorts to an event near you. That way, you don't have to arrange said event, you just have to get people to come with you. 'Freethinking' covers a lot of ground, so I'm sure you'll find something.
Good luck and welcome.