One of Jesse McCartney's hit singles is about body language. He makes it clear, when reading through his lyrics, that he (like most teenagers) needs some help on reading certain forms of body language.
Teenagers struggle, now more than ever, on reading body language.
This is due to many new technologies, including:
....SO MUCH INFORMATION IS BEING BLOCKED AND MISUNDERSTOOD!
An example was given in the book of a simple situation including a girl just saying "It's just awful in here!"
How do we figure out what she's referring too? This is where body language interpretation is a necessity.
Is she in a hot room?
Is she on a crowded bus?
Or is she smelling something fishy?
We would only be able to determine this by reading into her body language or by viewing the extralinguistic information that is being given.
One of (possibly the most important) features of language, is as simple as body language.
So turn the phones off and close the computers, even you, Jesse McCartney.