Did you know you can open your shoutbox in a new window?
Have you seen this icon?
Hover over your friend's picture with your mouse and watch the tooltip pop-up box appear. You'll see the
icon. Click on it and you have a nice, easy, convenient way of shouting someone.
The best part: you can have different shoutboxes open for different people! Never accidentally profess your undying love to some random stranger again!