Maybe post some links on your FB to information on nestle's practices that are just wrong on so many levels, as an education to all.

I calmly inform people on why I don't like nestle products, I've also seen first hand the damage in Africa, so I explain what I've seen there. People are usually shocked and then start to make the ethical choices for their shopping. My family knows that I will not consume stuff in their homes that is a nestle product, it has taken about 15 years but some of them are coming around and do shop more ethically now. I'm the supposedly the rabid hippy in the family - they're used to it by now.