Actually, if you're a suburbanite, the evildoers can smell it on you. I recommend, to avert any possible trouble, to cover yourself in bad cologne to hide the smell of outer burbs. Also, you'll blend in far better in native Polish garb, so some research into ceremonial dress is in order. Furthermore, it scares off potential attackers if you constantly make random signs with your hand, convincing others you are some sort of gang member. But really, if you follow these simple rules, perhaps you will lose only your wallet and not your life en route.