* Voting: Citizens in Brazil have the right to vote in elections at the federal, state, and municipal levels.
* Running for office: Citizens in Brazil have the right to run for office at the federal, state, and municipal levels.
* Jury duty: Citizens in Brazil are required to serve on jury duty if they are called.
* Taxation: Citizens in Brazil are required to pay taxes on their income, property, and other assets.
* Military service: Citizens in Brazil are required to serve in the military for one year if they are male and between the ages of 18 and 28.
* Political activism: Citizens in Brazil have the right to participate in political activism, such as protesting and petitioning the government.
* Environmental protection: Citizens in Brazil have the right to protect the environment and to hold the government accountable for environmental damage.
* Social justice: Citizens in Brazil have the right to social justice, including the right to education, healthcare, and employment.
* Human rights: Citizens in Brazil have the right to human rights, including the right to life, liberty, and freedom of expression.
These are just a few of the many roles that citizens play in Brazil. By exercising their rights and fulfilling their responsibilities, citizens can help to make Brazil a more just, sustainable, and prosperous country.