Any camera phone will do. If its a posh one with a light on it then that can help.

Being in a pub helps as you may also need some beer or other alcoholic beverages.

RandyHands.com highly recommends Tuaca (It's a Brighton thing), Guinness, Pimms and maybe sometimes some Kronenbourg 1664.

It's time to get creative.
With your camera phone in one hand and your, erm, hand in the other... Try to capture that classic RandyHand snap by moving your hand(s) up close to the camera.
Think dirty thoughts.
Think '50 and over'.
Or perhaps not. We're not trying to scar any fragile minds...

Now for the best bit. Uploading your photo as a RandyHand pic to RandyHands.com! First you need to get the picture on to a computer. If you're clever, you can zap it over using Bluetooth or infra-red, but if you've no idea what that means, then it might be easier to email it to yourself. You can email it using whatever software your phone has, or send an MMS to an email address.
Its not that hard really. If you get really stuck, then find someone with glasses and try asking them, they might be able to help you.