Currently Being ModeratedSep 17, 2013 6:25 PM (in response to arnieom)
Launch the app that uses your camera for the purpose you want. Use "Help" in each app for specific info for each app.
These are some of the apps you can use:
Photo Booth http://www.apple.com/osx/apps/#photo-booth
Currently Being ModeratedSep 18, 2013 8:22 AM (in response to arnieom)