Keep a distance from strangers. If you meet a stranger, you'd better keep a distance of one to two meters, so as to avoid some malicious hearts from strangers, and you also have time and space to protect yourself.
Don't talk to strangers, don't talk to some strangers casually, especially some strange old people and some children. Most of them are the bait of some swindlers and thugs, which can easily make you lose your vigilance and eventually be deceived or even hurt.
Respect strangers. Don't say anything casually when you see something, so as not to be used and hurt by some people with extreme emotions. Only around friends can you relax a little. When you meet a stranger, you must be vigilant and pay attention to your surroundings.
I hope everyone can live a safe life.