This is a good activity using authentic menus.
Your group owns a restaurant, but business is bad.
So some members of the group go to all the other restaurants in the classroom
to see their food and service. One member of the group stays at the restaurant and
waits for customers. When customers come, serve them!
Model conversation:
Waiter: いらっしゃいませ。Welcome to our restaurant!
Customer: ここは 何りょうりですか? What kind of cuisine is here?
W: 〜で ございます。(polite way of あります。)It is ~.
C: そうですか。じゃあ、ここに します。I see. Then I'll decide on here.
W: ごちゅうもんは?What is your oder?
C: 〜に します/〜を おねがいします。I'll have ~.
W: (repeat)ですね。かしこまりました。You will have ~, okay.