What is an example of a responsibility of a US citizen? Is it paying taxes serving on a jury registering for selective service or voting?

An example of a responsibility of a US citizen is voting. US citizens have the right and responsibility to participate in elections by casting their vote for various political offices and ballot measures at local, state, and national levels. It is one of the fundamental ways citizens can actively contribute to the democratic process and have a say in determining the future of their country.