[kagamine]

You can now try the Japanese lol: www.

It's the literal sound of a chuckle/giggle/light laughter. So when you say it aloud, you need only laugh naturally.

To see it in action go to http://nicovideo.jp and pick pretty much any video. Start watching with comments on, they scroll over the video, and marvel at the trails of www(wwwwwwwwwww).