Normally, there are different rules for each chat room created on tinychat. Though some consist of rules for safety, the most common are:
Be respectful to all.
Breaking rules in a certain chat room could lead to a tinychat ban. This is the act of a room operator kicking out a user. Though the room operator can at any time forgive the user by clicking on their name, and the user will now have access to the room one again. Well-known rooms often have lots of rules to make the room as safe and fun as possible.