wah kaoz so easy, before u sleep, u use marker anyhow draw ur
face, draw turtle lah, draw pig lah on your face...the ghost in the
mirror see u..see ur face even uglier than his also sian one half
ah....then he no mood to scare u liao becos u more scary than
him....
the purpose of knocking door before u go in hotel room is for
courtesy. Imagine the ghosts sitting on your bed playing chor dai
dee, then u just barge in like that, courteous or not. Give them
ample time to get ready to look scary mah.....some of them may be
bathing or pang sai....give them chance lah