Holding debates
From SecularPortal
Everyone loves a good debate[1]. Debates can be divided into two types - formal debates, in which there are two sides debating each other, and open debates, in which anyone can speak. Debates are great because it really shows people that there is a point in having an Atheist Society - it isn't just a group of people sat round agreeing that there is no God. It is also often a good idea to have debates about issues on which atheists might disagree, as well as debating with other societies such as the Christian Union.
Formal debates
Formal debates involve two sides, one proposing a motion and the other opposing it. Speakers from each side usually take it in turn to speak, followed by a series of questions either from one team to another or from the audience, followed by a chance for each side to conclude their argument.
Sometimes it is better to avoid such a formal structure to a debate. Although certainly each side should be allowed to have time to speak uninterrupted, a more rapid back and forth structure creates a better debate, getting closer to the issue.
Group discussions
Group discussions allow everyone to have their say, though arguably need to be chaired more carefully than formal debates, as the chair has to keep everyone in the room in check, rather than just the formal speakers.
External debates
When debating with other faith societies it is often a good idea to get your union's debating society involved as the chair, as they will probably be excellent at chairing debates and keeping people in line.