From a young age we are told that our inner qualities matter more than the clothes we wear — but do you know that your shoes can actually speak 41 to strangers? 42 a study by researchers at Wellesley College in Massachusetts, people could accurately 43 a stranger’s age, gender and income just by looking at their shoes. 44 that isn’t necessarily surprising, what made researchers 45 was the second level of analysis. Participants in the study could also tell whether another person was insecure in her close relationships, or more laid-back and relaxed, based on the shoes she wore.

    The United States doesn’t have one police force. Instead, there are different police agencies around the country. At the head of each police department is the Chief. The police force includes police officers and detectives. Police officers wear uniforms, and they respond to calls for help, direct traffic, investigate a burglary, etc. They often patrol a specific area and work with a partner. Detectives are plainclothes investigators who gather facts about specific cases. An officer or detective can be promoted to corporal, sergeant, lieutenant, or captain. 

    Citizens who are at least 20 years old can enter the police force but there are specific requirements. They must pass certain written and physical examinations. In addition, senior officers, psychiatrists, or psychologists find out about the candidates’ personality by interviewing them or giving them a personality test.