It's my first time coming to O'hare and I will be picking up my parents from the airport. Where do I go? What's the address, what area should I park at?

Find out from your folks which terminal they will be arriving at. When you search for directions to the airport, Google will ask you which terminal. Or, if they haven't landed, select the cell-phone or short-term parking and wait for their call.

depending on what airline they're traveling on it can vary quite a bit where you need to pick them up.

Put Google maps on your phone. It'll get you to exact terminal

They coming from El Paso