If you have pulled a big enough prank that whom you pranked when to a professor or that you pranked a professor or that you broke a rule in public where a professor saw you, here's what you need to do and have planned.
If you happen to be running from a very pissed off -I mean- angry Filtch, and you are in Gryffindor, run through the second corridor to the third and then take four lefts and then a sharp right and then go straight to Gryffindor tower. Filtch swears he knows the Gryffindor password- he really doesn't. Now the turns will slow him down and if you are not a fast runner then they will confuse Filtch on where you are going. The corridors are the confusing parts. Filtch thinks all Gryffindors go the same way-the easy way- to Gryffindor Tower. Taking the second then third and up corridors will make Filtch think something totally different.
If, by any means, you are running from another professor, then let's hope not, because other professors know the passwords and it could mean extra detention.
If you are in Ravenclaw and you have read this then, I suggest you use your brain well and answer the riddle to your common room fast. Also use a rubber net on Filtch. I hear it slows down squibs even more than it would on a regular witch or wizard.
A Hufflepuff, you may be, don't go for your common room. Try the library, and try walking in casually. Filtch won't stop fast enough and he would make a loud entrance which would have Madam Pince on him.
Unfortunately-I mean- luckily a Slytherin, go for the dungeons, straight. Use your cunning skills and don't rely on this book. I'm Sirius Black, and I'm the one writing this. If you are Slytherin-think about that for a moment.
Also, another tip is to not get caught. Just saying. Honestly, maybe almost get caught, but Siriusly don't actually get caught.
And unless you happen to be me (or Deimos or Courtney or any Marauder) don't go big on the pranks. They MIGHT get you expelled. Just another tip.