How Do You Define Your Privacy?

I would only say that you define your own privacy. By that I mean if you share it, expect it to be shared.
I don't do the facebook thing or any of the other ones and I damn sure don't want my info on any of it. Unfortunately you can't stop somebody else from showing pictures that include you or talking about you. As for the nosey neighbors, we all have those and can't do much about it.