How to treat the phenomenon that most people in the subway bow their heads and play with their mobile phones?

Most people in the subway are strangers. Adhering to the principle of speaking less and making fewer mistakes, talking to the handsome guy hi makes the social groups in China fall into a state of indifference. However, the waiting time is too boring, and it will become so helpless after a long time. At this time, your mobile phone is your partner.