Coca-Cola was first marketed in the 1860s as a patient medic…

Coca-Cola was first marketed in the 1860s as a patient medicine, which was designed to offer the energy boost of cocaine without the vices of alcohol. The new beverage was invigorating and popular. Today, however, cocaine is not just banned, but widely demonized. This is an example of

Jill is visiting her boyfriend’s family in China. She points…

Jill is visiting her boyfriend’s family in China. She points at him with her index finger during a conversation, which his family doesn’t seem to like. Her boyfriend later explains that she should point with an open hand instead of using a finger. Why is this instruction needed?