Can body language be accurately interpreted?

Your Task. 

What attitudes do the following body movements suggest to you? Do these movements always mean the same thing?
What part does context play in your interpretations?
a. Whistling, wringing hands
b. Bowed posture, twiddling thumbs
c. Steepled hands, sprawling sitting position
d. Rubbing hand through hair
e. Open hands, unbuttoned coat
f. Wringing hands, tugging ears