Step 1. In iChat, choose File > Share iPhoto With iChat Theater.
A media browser appears.
Step 2. In the media browser, select an album, then click Share.
iChat tells you to invite a buddy to a video chat.
Step 3. Establish a video chat: select a name in iChat’s Buddy List window, then click the video camera button () at the bottom of the window.
As soon as your victim accepts the invitation, the slide show begins. ...