Hajimemashite= hello (in first meeting)
Dozou yoroshiku= nice to meet you/ please favor me
Arigato gozimasu/domo arigatou gozaimasu= thank you/thank you very much
O-genki desu ka= How are you?
Oyasumi nasai= good night
Kombanwa= good evening
Itadakimasu= thanks for the meal
Gochisousama deshita= this is really a feast!