As eric was waited for class to start, he considered starting a conversation with one of his classmates. however, eric decided they all looked like "frat boys" and he figured they would have nothing in common, so he sat silently and waited for class to start. eric's behavior can be best described as:

In social psychology, the term stereotype is any considered thinking regarding particular kinds of people or certain methods for acting expected to speak for the whole gathering of those people or practices overall. These convictions could possibly be right or wrong as well like in this example Eric’s thinking about “frat boys” indicates that.

Citizens have certain rights such as freedom of speech. Citizens also have certain requirements such as the need to obey laws.            

Explanation:

             The citizens of the United States of America are the permanent people living and staying in the United States. Every U.S. citizen enjoys certain rights and privileges for being a citizen. They also have certain  responsibilities which they have to render as a United States' citizen.

           U.S. citizens have the right to freedom of speech and expression, the right to vote in elections. They also enjoys the right to practice any religion of their wish. The U.S citizen also have certain responsibilities of obeying the local laws and the federal laws. They have the responsibility to defend the American Constitution.