Crowds are large groups of people who take on collective behaviors depending on the situation. Collective behavior occurs when a crowd acts together without established social norms, guided only by the actions of others in the crowd. Institutional behavior follows predictable social norms that control behavior. Crowds share traits of unclear expectations, feeling a problem needs immediate solving, quickly spreading feelings/ideas, going along with others' actions without much thought, and saying/doing things one wouldn't alone. There are four crowd types: casual crowds form spontaneously; conventional crowds form planned but may act spontaneously; acting crowds focus on a single goal; and expressive crowds emotionally engage in an activity.

1. CrowdsHow do you define crowds?Crowds are a huge mass of people who different situations.What is collective behavior?When the mass of people take the same actions to the people surrounded. The people repeat the action established by other people. Is unpredictable and operates outside the social norms.What is institutional behavior?Institutional behaviors are established permanently. This occurs in a well-organized, rather predictable way. Institutional behavior is frequent and regular. The predictable patterns are controlled by social norms and are essential for social order. We could not survive whit out them.Which are some traits the crowds share?All crowds share a few traits. Exist five crowd characteristics. The individuals in the crowds do not share clear expectation about how to behave and about what will happen.

2. They also tend to feel that something must be done right away to solve a common problem.