Ah! Cheers!!
Yes, quite a feat of synchronicity to have a happy face there
I once worked for the American forces overseas (in West Germany) and sometimes, there were some complete car crashes language-wise between me and the American girls
There are words you use quite happily that shock us - and vice versa
I had to be taken to one side and spoken to quietly because I kept asking the other girls in the office if I could borrow a rubber. Apparently, you call it an eraser