There's no surefire way to skip without getting caught, but there are a few things you can do to increase your chances of success. First, try to blend in with the crowd. If you're wearing the same clothes as everyone else, you're less likely to stand out. Second, keep your head down and avoid making eye contact with authority figures. If you look like you're trying to avoid someone, they're more likely to notice you. Finally, move quickly and confidently. If you look like you know where you're going, you're less likely to be stopped.