Instructions
Plug your PlayStation Eye's USB cable into one of the USB inputs on the PlayStation 3. The PS3 has two USB inputs on the front of the console, as well as a few on the back. If you're planning to leave your PlayStation Eye plugged in indefinitely, use one of the back inputs.
Press the "Power" button on the PlayStation Eye to turn on the device.
Press the "Power" button on your PS3 controller to turn on the console. Your PlayStation Eye and PlayStation 3 are now connected.