T5 is the easiest place to meet someone at ORD. Just park in the international T5 parking lot and walk inside the terminal. Go downstairs to arrivals and they will exit either through the A or B doors. Both sets of doors are in the same area, look at the arrival time and add about 30 minutes for bags and customs. Take I-190 to ORD and exit at Bessie Coleman drive and follow the signs.