Postby Belton » May 20th, 2009 9:03 pm
You don't say itadakimasu to waiting staff, but to people eating with you.
It's sort of like grace in the Christian way without religious overtones.
Maybe a bit like Bon Appetite too.
Some people put their hands together in front of them while saying it.
I see it as being grateful for the food and the effort of everyone in getting it to my plate, from the farmer or animal on up. I've gotten into the habit of saying it even when eating a meal alone.
You can also take your lead from the people with you. If they say itadakimasu, you say it too, it's good manners.
Gochisousama deshita, can be said both to the teller, or host, at a restaurant. (Maybe not McD's, or convini etc though) and to anyone treating you to a meal (or snack) either by preparing it or buying it.
"That was a lovely meal, Thanks" to a host, or just another way of saying thanks at a restaurant, saying you enjoyed the experience.
The flip side of this is that English doesn't really have (secular) set phrases before and after meals much to the confusion of my wife.