You have the inalienable right, God given some might say, to assemble and associate with other people.
Peacefully or not.
What this means is that it can only be taken away from you. The government at its best is designed to protect this right by preventing others from taking this right away from you. At worst it is designed to restrict your rights and in some cases prevent you from exercising them.
You have an innumerable amount of inalienable rights. They end where others begin.