If something is happening that one does not want happening, the most common and effective method in preventing it is to express opposition, vice versa for an event one supports. But this method is primitive, and there is one far more effective: the skillful use of neutrality. With proper use of neutrality, you will be able to manipulate many situations to fit your agenda.
Subversive neutrality cannot be applied to just any situation, however, for example: say you are a die-hard fan of violent video games, in likelyhood at this moment there is a congressman/member of parliament or other government figure in a major country trying to ban or further restrict violent games at any given time. Sadly, taking a neutral stance will not help your situation here, your best bet is to site statistics correlating the rise of violent games with reduced crime (see also: Statistics: A Subversive Approach), be sure to publicly dismiss anyone siting Post hoc ergo propter hoc with a hard-hitting insult (ex: “pseudo-intellectual douchebag christfag”).
On the other hand, if it’s an issue that you are trying to crush, such as rights for people other than yourself, then adapt an openly neutral stance. Maintaining the status quo is always far easier than changing it.
Encourage neutrality as the attitude that everyone should have, and mock those getting invested in matters that surely do not concern them. For example, if someone mentions to you the possibly of no longer stoning to death gay people, say this: “You act like you’re so concerned about the right’s of homosexuals, but you’re obviously just on an ego trip. Those of us not on high horses know not to get involved in matters we are not a part of.”
This is a far more effective approach than fighting the opposing side directly, because you will be giving people a way out of using their reasoning skills and making a decision. This appeals tremendously to those not personally affected by the issue–it involves doing nothing, and even makes them feel superior for it–and the more apathy towards the issue the less are the chances that any change will occur.