Answer:
Obeying the law: Every U.S. citizen must obey federal, state and local laws, and pay the penalties that can be incurred when a law is broken.
Paying taxes: All citizens must pay taxes in one form or another, including federal, state, local, Social Security, property and sales taxes.
Serving on a jury when summoned: Whether a citizen or not, all persons have a right to a trial by jury made up of a panel of their peers.
Registering with the Selective Service: The Selective Service is a federal agency within the executive branch of government that exists to readily resume a draft, if necessary, to provide the number of men needed by the armed forces in the event of war or other national emergency.
Staying informed: Citizens have the responsibility to stay informed of the issues affecting their communities, as well as national and international issues, and to be active in the civic processes.
Voting: While voting is a right and privilege of citizenship, it is also a duty or responsibility. U.S. citizens have a responsibility to participate in their government by registering to vote and voting in elections.