Hi, when I was a very young child, I lived in a village, where they spoke a German dialect. Later I moved to Dresden and my parents used the standard language and they taught me the standard language. When I come to the village, they switch to the standard (with some accent), when a non-dialect speaker attends. They switch to dialect, when they speak to each other. Is this the normal behavior of dialect speakers, or does it depend on the dialect? (They know that I understand the dialect. But I cannot speak it properly anymore.) My father speaks dialect when speaking with his sister on telephone, but nether when I attend the conversation. He wanted to avoid that I learn the dialect, but I learned it until we changed the region. I read in a book, that such things are normal that they switch to standard, when they feel, you do not belong to the group.