Perhaps the most startling theory to come out of kinetics, the study of body movement, was suggested by Professor Ray Birdwhistell. He believes that physical (1) is often culturally programmed. (2) , we learn our looks—we are (3) them. A baby has generally (4) facial features. A baby, according to Birdwhistell, learns where to set the eyebrows by looking at (5) around--family and friends. This helps explain (6) the people of some regions of the United States look so much (7) . New Englanders or Southerners have certain similar facial (8) that cannot be explained by (9) . The (10) shape of the mouth is not set at birth, it is learned after. (11) , the final mouth shape is not formed until well after permanent teeth are (12) . For many, this can be (13) adolescence. A husband and wife together for a long time often come to look somewhat alike. We (14) our looks from those around us. This is perhaps why in a(an) (15) country there are areas where people smile more than those in other areas. In the United States, (16) , the South is the part of the country where people smile most (17) . In New England they smile less, and in the western part of New York state (18) . Many southerners find cities such as New York cold and unfriendly, partly because people on Madison Avenue smile less than people on Peachtree Street in Atlanta, Georgia. People in (19) populated urban areas also tend to smile and greet each other in public less than people in rural areas and small towns (20) .