Here's how it works:
* Emergency Transport: It's primarily designed to pick up wizards and witches in need of immediate transportation, especially in emergencies.
* Calling for a Ride: To flag down the Knight Bus, you need to wave your wand and shout "I solemnly swear I am up to no good!". This is a magical phrase that alerts the bus to your presence.
* Specific Location: The Knight Bus will only stop for you if you are in a dangerous or inconvenient location. Standing in the middle of a busy Muggle road or in a dark alley might get the bus's attention.
* The Bus Knows Best: The Knight Bus doesn't always follow your directions. It's capable of navigating through tight spaces and taking unpredictable routes to get you to your destination quickly.
So, unless you find yourself in a truly dire situation, don't try to summon the Knight Bus. It's better to rely on more conventional means of transportation!