On this past weekend, I went to my friend's live and afterwards joined the dinner of the group. It was casual restaurant with tasty Japanese food and drinks. People from the group were very nice and friendly, so I fully enjoyed the dinner.
You see a display here. You can order food and others by pressing the button on this. This photo is showing the plates and cups and glasses. Yes, when you need more clean plates, cups and glasses, you press the screen of that and waiters and waitresses bring them for you in seconds !
I heard this is not so rare at this type of restaurants lately. Wow, I didn't know it.