Halloween has always been a favorite holiday of mine. It's too bad that we don't really celebrate it over here in Thailand. You do see a bit of face paint come out, but that's about it.
And Thai people are definitely into ghost stories. Almost every Thai movie that is made is either a silly comedy or a horror flick. Not only that, but I've heard several real-life ghost stories from a certain friend of mine. For example, when his grandmother died, he told me that several members of his family reported seeing her ghost.
But perhaps since Thai people believe so strongly in real ghosts, then dressing up as one is not as much fun.
Aside from the scary costumes, my other favorite part of Halloween is carving pumpkins. I saw my first creative Pumpkin Carving Contest at the NC State School of Design back around 1997, Jack O'Lanterns have been one of my favorite parts of Halloween. My friend Eric sent me the pic on the right and a link to more outrageous (and not particularly classy or tasteful) pumpkin carvings.