We don’t have Wi-Fi, talk to each other
I believe this sign could be hanged at the entrance of a café or restaurant. Even though nowadays most people can use their cellular data to access the Internet without using Wi-Fi, it is still a good idea to remind them that human interaction is much more important. Unfortunately, so many people nowadays spent way too much time on their phones and do not value real interactions even when they’re with somebody. They’re either too busy with work or just have a habit of being on their phones all the time. They tend to check their social media even while talking.
However, there are several ways to deal with the problem. First of all, When having dinner at a restaurant with your friends, turn off your phones and put them on the far corner of the table. Or perhaps, leave them turned on, and the first person to get distracted by a notification pays for the dinner. Secondly, there is a popular productivity app called Forest that helps people beat their phone addiction and manage their time interestingly and pleasantly. Users can earn credits by not using their cell phones and plant real trees around the world with the credits. You can also create a room in the app with your friends and plant trees together!