AC Compresser not running.

I am a complete newb when it comes to AC systems and I dont know anything about how hondas are wired.
My car has all the stuff for AC but it does not work the AC light comes on when I press the button but the compressor does not kick on. What do I need to check in order to diagnose what my problem is?
My car has all the stuff for AC but it does not work the AC light comes on when I press the button but the compressor does not kick on. What do I need to check in order to diagnose what my problem is?