My neighborhood doesn't have a hand sign. What do I do?!?
You just pick one - East Side or West Coast. It's like a circumlateral civil war, perpendicular to the North-South lines.
Or, if you're playing bridge, you want to sit on the side of the table parallel to the bathtub, so you'll win. I guess if your bathtub runs east-west, you're screwed.
Makes the same amount of sense, anyway.
Make one up and distribute a flier to your neighbors. Remember to greet all neighbors with "wud up homes" or "wud it be, dog."