[header] How to fart in class without anyone noticing [title] Don't freak out! [step] Remember that there is a way to fart and still be savvy. [title] Clench your anus when you feel your stomach growl. [step] Even though you may feel immense pressure, it's best to not let the fart come out while your stomach is growling. 
The more pressure you feel, the more deadly and loud the fart will be when it comes out. So make sure your stomach isn't growling before you let one rip.