Sockets

As the same as the aforesaid, the mobile phone becomes indispensable to us. However, the smart phone consumes power very much when they listen to music or watch videos. And then, upon setting down, they may ask: “Can I charge my phone?” “Where is the socket?”

Clean table and seat

No matter how clean the table and seat are, they will always wipe them with handkerchiefs. Only when they wipe them clean, can they sit down.