This is not WHISPER.

 

The messages are still public, but directed to a particular user. In a face-to-face conversation with several people, you sometimes look at a particular person when you're talking.

If you are chatting in a room and want to send messages to one of the other chatters, click on his/her name in the user list or select the user nickname from the dropdown menu at the bottom of the window.

 

Whisper to other people

In the list of users, select the people you want to whisper to.

In the message text box at the bottom of the window, type what you want to say, and then click the Whisper button.

Your message appears only to the people you selected.