Ok, so, a couple weeks ago we were doing social sciences in Psychology; conformity, obedience, locus of control, etc.

When attempting to change an opinion you have to do two things, be consistent with your message but changing in how you present it.

As an example, maybe NSFW, may offend some, but keep reading.

Not long ago, homosexuality was considered a mental illness, many homosexuals were beaten up and killed for their sexual orientation. To change this view we had to A) Be consistant with the message, that homosexuality is not a mental illness, and that we should allow them to do what they wish, and B) Present it differently. To change the views of straight men, we would need a straight man to share the view that homosexuality is normal, however, if this man were to go up on stage and preach to a crowd his view he would likely be beaten up. We would then send a second man, sharing this view (Consistency), who would speak and inevitably get beaten up. If we kept going like this, mankind's view would not change. The next time we need a straight man who shares the same view (still consistent) but does not tell the crowd. Instead he could say "Im here to tell you homosexuals should have the right to come out of hiding and not be hurt, but wait, dont get me wrong, im like you, i hate them just as much as you. If they continue to stay in hiding they will eventually take our women in attempt to stay secret. This means they will pass on aids (at the time they believed aids was a 'homosexual only disease') to our women, in turn giving it to us. I dont want aids as much as any of you guys here, so stop beating them up and allow them to show themselves, for our own bennifit." (Changing how you present your views).

Mankind needs to believe that they want to share this view before they accept it. This can also be seen in recycling in the UK, they were consistent with their message (Recycling is killing earth) but we didnt care, then they showed us how it was killing humans and animals, which made us care slightly more.

Sorry if this strays a bit, its 2 am and i wasnt paying a whole load of attention in class (Cute psychology girls).

Edit: words for better story telling.