I sit like this, U sit like that

ah dear drew this a moment ago in his attempt to show how I sit ...
this was after I denied being hunchback & insisted that he also sit the same way like me

According to the sit-fu, the picture on the left is how he sit and the right is how I sit.
such a great sit-fu !! =D muahaha...
Now I've a clear pic of how I sit with my back bent .... this explain the back ache I sometimes experience.