Hi there! Welcome to FH! ^^ I'm not sure what you mean by interacting, but I see you wrote game play farther up. If it's controls you want, you can hit the esc key -> Options -> Controls. You can see all the controls there, and you can also change them if you wish.
Now if you mean chatting, there's quite a few different chats. Local, General, Group, etc. General reaches the whole map, while Local is only a limited area around you. I'm not sure what else to say, but, if you have an questions, feel free to ask!