Here’s a link I found interesting; it shows a map of what people call ‘soda’ for their area. I always ask for a coke, but I preface it with “do you have Coke or Pepsi?”
I’m not that found on Pepsi, the flavor seems flat to me; it’s simply not as enjoyable. I prefer the slight vanilla taste that Coke offers. Oh, and I recall being told my great-grandfather you to say, “Pepsi is only good for washing your feet.”
What do you ask for when you want a soda??