No they don't. Different meeting locations have different formats but none of them will make you talk.
At most meetings the chair will ask at the beginning of the meeting if there are any newcomers or visitors from out of town there. If you want, you can introduce yourself then. Just give your name, if you want. Don't have to say anything else. But you don't even have to do that much.
During the meeting if you are called on, if you don't want to talk all you have to say is "Pass" or "I'd just like to listen."
Good luck!