How do I work the web cam

Just bought a laptop and trying get the web cam on

If your laptop is Lenovo then you can visit the IBM's download site to get the drivers. Similarly other brands too have theire corresponding download and documentation sites from where you can download the corresponding drivers. There you should be able to find the appropriate driver for your webcam depending on the operating system you use.
You can also get the driver from your driver CD /DVD that came with your laptop. Once you install that driver and restart your laptop you will be able to detect your webcam. You can use the applications like "ManyCam" (from alongwith yahoo messanger or so, so that you can use the webcam.
By the way, what is the make and model of the laptop?