Hello,
Perhaps, the body language is rather universal and perfectly described by Alan Pease at his similar book
<a href="http://www.secret-solutions.com/download/other/BodyLanguagebyAllanPease.pdf">http://www.secret-solutions.com/download/other/BodyLanguagebyAllanPease.pdf</a> ( I was googling and found this link in a few seconds).
1) I wonder if you mentioned any cultural difference in regard of this issue?
For example, Bulgarian express that they don’t except something by nodding.
2) Do you think that your nation has some favourite gestures?
I mentioned that many Russians scratch their back of the head being puzzled;
or beat yourself in the chest when want to justify something.
Thank you