Interesting. Except I sit 'back' and cross my legs because that just happens to be the only comfortable position I can find to sit in for any length of time because of my arthritic hips. So once again, as anyone who has studied body language will tell you, "You can't take the body positions or movements in isolation" ;)
Even the best of us can be misunderstood. A Palestinian bystander criticised Banksy's art and told him to go home. The Palestinian man did not want Banksy to make the hated wall beautiful.