If you have a very complicated pushback system the best people to talk to are the tug drivers and push back crews who work at the airport.
I personally won't have the first clue which way to push unless the instruction is N/E/S/W or similar but if saying "cleared push for 06" to the tug driver means something to him then I'll happily do that. The problem arises when the tug driver then asks me which way to push...
S.