Practice in front of a mirror to find out what crazy smile you like best.
This type of laugh can build nicely in momentum if you start slow and increase the speed of your cackling, as if overcome by pure evil.
If you get stuck, try to think of the most vindictive thing you’ve ever done. Did something about it feel good? Try to connect with this part of yourself.
Make up is a fun way to get in touch with your dark side, too. Try Halloween make up with fake blood for a super scary look.
