Eating is a social event. And very communicative. So please, leave your smartphones at home. Remember eating at your grandmas‘? Why not putting all plates on the table and let people have fun sharing?
You do not need a main dish.
Entrée, main dish and dessert. Boring. But this is the way we learned building restaurants. Maybe the time is right to change this habit. Maybe the time has come to let the customer decide more. What dish should be entrée, main or dessert? This implies that all portions would need to have the same size. You just have to write your menu differently.
Digital detox. One of the main future topics.
There is a small movement of restaurants and bars which prohibit the use of smartphones in the venue. Some even use interfering transmitters. Especially when gathering with friends, it should be a no go to check your mobile all the time. In the example below, the travel agent collects all smartphones when beginning the trip — to help travellers maintain the focus on nature and travel highlights.