A while ago, I knew a way to send a private message without the need to either go up to that person and press X or find their name in the chatbox or local users.
There was a command I could write in the chat box. I don't remember what it is... You know, some kind of command like you find in online games, something like: /whisper ''username''
I don't remember what it is. If someone knows what it is, please tell me!