1. Dust
Sprinkle some powder into your shoes. Sometimes, squeaking may be caused by friction between insole and sole. Talcum powder, baking soda powder and corn flour are all acceptable. After taking out the insole, sprinkle some powder on the sole. Then put the insole back to see if the insole and sole are more docile. If you can't remove the insole, rub the powder on the edge of the sole. These powders can reduce the friction between insoles and shoes.
paperboard
Stuff a tissue or dry paper in your shoes. If you don't have talcum powder on hand, you can also "calm down" your shoes with paper towels or dry paper. Take out the insole first, then put the folded paper towel or dry paper in, and finally put the insole back in the shoe.
3. Shoe polish
If the squeak comes from the sole, try to apply some powder to the bottom and seams of the shoes. Just be careful when walking, because the friction between the sole and the ground becomes smaller after painting, and people are more likely to slip. Or try to apply some shoe polish or leather care solution to the seam between the shoe body and the sole. Be careful not to apply too much, wipe off the excess shoe polish and let the shoes stand for one night before wearing them.
Wear socks
If you wear shoes but don't wear socks, the sweat on your feet will produce moisture, which will make your shoes creak. Putting on socks may stop the squeaking. Try wearing socks for a few days and see if the noise will go away.