There are a few different ways that you can keep your belt from slipping. The first is to make sure that you have the right size belt. If your belt is too big, it will be more likely to slip. You can also try wearing a belt with a smaller buckle. Another option is to wear a ratchet belt, which has teeth that grip the fabric of your pants and help to keep the belt in place. Finally, you can try using a belt clip, which attaches to your pants and holds the end of the belt in place.