If you're looking to give someone a fright, a successful "BOO!" is all about psychology and timing.
A guide to Boo's metaprogramming and extensibility features? If you're looking to give someone a fright,
: The best way to see what Boo can do is to look through its existing test cases on GitHub. They demonstrate almost all the language's "muscles." If you're looking to give someone a fright,
: Use a short, sharp, explosive sound. A long "Booooooo" is spooky; a quick "BOO!" is a heart-stopper. 2. The Boo Programming Language If you're looking to give someone a fright,
: Silence is your best tool. Avoid heavy breathing or rustling clothes. Move on the balls of your feet to minimize floor creaks.