While individuals have significant free speech rights under the First Amendment, these rights are not absolute. The state can impose reasonable time, place, and manner restrictions on speech, particularly when balancing its sovereign interest in managing its property and maintaining order. Any restriction must be content-neutral, narrowly tailored to serve a significant governmental interest, and leave open ample alternative channels for communication.
For example: A university may restrict protests to certain areas or times so as not to disrupt classes, which is a legitimate governmental interest in maintaining educational order.