A more thorough explanation:

The right of assembly is a constitutional right guaranteed by the First Amendment. It allows people to gather peacefully in public to express their religion, politics, or grievances. This right is also known as freedom of assembly or the right to assemble.

For example, a group of people may gather in a public park to protest a government policy they disagree with. They may hold signs, chant slogans, and peacefully express their views. This is an exercise of their right of assembly.

Another example is a religious group holding a public prayer service in a park. They may gather together to worship and express their religious beliefs without fear of government interference. This is also an exercise of their right of assembly.

Overall, the right of assembly is an important part of American democracy. It allows people to come together and express their views in a peaceful and respectful manner.