Do you judge a person from his body language

Yes always but it's mostly unconscious. Remember that over 70% of communication in non-verbal. www.AddAnImage.com

it is impossible

I use knowledge about body language to interact with others. By knowing that we can anticipate what we should do. I won't judge their early body language, but i prefer to proof it with their other body moves, if it is suit with my prediction, then I know what I should do. Before I am sure I wont do the respon:p I made a discussion about it too on this:http://www.mylot.com/w/discussions/278805.aspx?p=0