You will need a computer, laptop or tablet with a webcam and a microphone (built-in or separate)
Check the bandwidth on your broadband (minimum 300 kb/second of streaming)
Check your web browser and make sure it is compatible (see Technical requirements)
Make sure the browser has access to your camera and microphone. A pop-up message will usually appear on the screen asking to allow this. Alternatively go to the settings on the computer and change it there.
Close all other programs that may want to use your camera (Skype for example)