1、When getting on a bus or subway, if there are no seats available, try to stand leaning against the vehicle body. Observe the situation of the people around you slightly to avoid theft.
2、If you carry a "backpack" on board and stand in the middle of the vehicle, in addition to staying alert and observing the people around you to prevent theft, you can also sway your body periodically with the motion of the vehicle. This way, if a thief touches your bag from behind, you will notice it. Moreover, this action looks more natural than constantly looking back. I strongly disapprove of wearing backpacks in front, as it looks very ungraceful and makes you look like a pregnant woman.
3、Ask for an invoice when consuming. Make sure that the stamp on the invoice belongs to them. If not, you have the right to request them to replace it, which will be helpful for future consumer rights protection.