You can whisper to any player on the server with the "/whisper" or "/w" command. The syntax is the same across all platforms, however the steps change somewhat. The simplest method is to use /w /w /w /w /w /w /w /w /w /w /w /w /w /w /w /w /w Depending on your server, "/w", "/msg", and "/tell" can also be used in place of "/w".