When I see a couple in a cafe where a guy is sitting, stuck in his phone, and the girl with him is just sitting, sad, forging a spoonful of salad, but does not use his phone at the same time, apparently, showing a good example to the guy, or waiting for him to finish there, I always ask the waitress anonymously to give her flowers or dessert with the phrase: "So that such a beautiful girl would not be bored, but smiled." Interesting to see the reaction of both. Most often, the girls bloom, and the guys in shock jealously look at the sides, clean their phones. The girls sit with a mysterious smile, and the guys begin to actively conduct a conversation. Do not come to dinner/lunch together and then hang on the phone alone. I see it as disrespect for the person sitting next to me.