How do I clean the contacts on a lens?

[theantiquetiger]

Friend at work has a Tamron that he said was not working. I tried it on my camera and I got msg saying the contacts need cleaning. How do I clean them?

[Marko]

Google saves me fingers and offers up a decent vid. Camera Contacts Cleaning Tutorial - YouTube (http://www.youtube.com/watch?v=41hAgFbbk-E)