1. They really do talk a different language. I had to say 'water' three times before they knew what I was asking for.
2. I need a lesson in American coins. I had two dollar bills and some coins, but when the woman said $2.43 I realised I had no idea if what I held in my hand was enough. After a split second panic I just got out my purse and found another dollar bill, it was less embarrassing than asking how much I had in my hand!