1. Drawing attention to the inequalities of heterosexual/homosexual experience (e.g. through campaigns such as Stonewall and celebrations such as Pride week)
2. Maintaining a consistent message and showing commitment to the cause
3. Taking a flexible approach (e.g. using humour as a 'weapon'; avoiding a rigid and inflexible argument)
Harvey Milk was the first openly gay politician to be elected in California: he sponsored a bill banning homosexual discrimination in hotels, housing and jobs and was assassinated for his stance (the augmentation principle)
Gay marriage is now not regarded as unusual in many countries and TV shows such as Ru Paul's Drag Race, It's A Sin and Queer Eye highlight social cryptomnesia i.e. the change becomes part of the fabric of society to the extent that it's difficult to remember a time when things were different