#3 Do not put your gadgets on the table.
As tempting as it may be, keep your gadgets off the table. Having them there will distract you, your companions, even the waiter and the entire restaurant! What’s worse? Scrolling through Twitter while conversing with someone.
#4 Bring back food if it is not cooked well to your liking.
If your food was not cooked well to your liking, it is okay to send it back—just tell everyone else at the table to go on ahead and to begin without you.