The art of Physiogomy or interpreting faces goes back to Aristotle in 500 BC, but it was notarized by Judge Jones who realized that the true innocent had specific facial features. Imagine being able to tell how to structure your conversation with people when you first meet them to suite their comfort. You could eliminate their discomfort immediately. 
Here's an example of what you can know about someone the first time you meet them: 
 

Balance and Proportion: 
Left is mother 
Right is father 
Left brain father 
right brain mother 
Upper zone: hairline 
to eyebrow = inherited 
intellectual faculties 
Well developed = bright 
resourceful, success 
but must be accompanied 
by wide ears 
Narrow = face adversity 
Middle zone: eyebrows to 
tip of nose. Well developed = 
adventurous spirit; proud 
Small= accepts what is 
Long = w/rest of face long = noble 
Well shaped = long life 
Lower Zone: tip of nose to tip of chin 
Broad = affectionate; very broad = pass