Citizens exercise their sovereignty by "voting at elections."
Sovereignty is the supreme power or authority that belongs to a state or government. In a democratic society, the people are considered sovereign because they have the power to choose their leaders through the democratic process of voting.
When citizens participate in elections by casting their votes, they are exercising their right to determine who will represent them in government. By doing so, citizens are expressing their political preferences and influencing the direction of public policy.
Voting is a crucial aspect of citizenship and a fundamental way in which citizens can hold their leaders accountable. Through voting, citizens have the power to change the direction of their country and to shape the policies that affect their lives.
While attending political rallies and registering to vote are also important ways in which citizens can engage with the democratic process, the act of actually casting a ballot is the most direct and powerful way in which citizens can exercise their sovereignty. Citizens also have the right to sue the state, but this is not necessarily an exercise of their sovereignty as it is more of a legal recourse to address a particular grievance.