O-genki desu ka
(How are you?, How have you been?)
Okagesama de, genki desu (Thanks to you, I’m fine)
O-hisashiburi desu ne
Hisashiburi
(I haven’t seen you for a long time) formal
So desu????
(Long time no see) informal
Hisashiburi
Thank you for your hard work
おつかれさまでした
O-tsukare-sama deshita
Itadakimasu
Let’s eat. Bon appétit. Thanks for the food.