A crowd<span> is a large number of people who gather together with a common short-term or long-term purpose. </span> A conventional crowd<span> is a collection of people who gather for a specific purpose. </span> An expressive crowd<span> is a collection of people who gather primarily to be excited and to express one or more emotions. </span> As its name implies, an acting crowd goes one important step beyond an expressive crowd by behaving in violent or other destructive behavior such as looting.
a fifth type of crowd is the protest crowd. A protest crowd is a collection of people who gather to protest a political, social, cultural, or economic issue.
