Ever had your eye blinking unintentionally?. Sometimes either your left eye or right eye will blink like say 3 times repetitively.
There are many countries in the world that have superstitions associated with blinking of an eye. In India, if your right eye is blinking, there's a sign that something good will happen, but if your left eye blinks, not good. But that only true for man, for woman, it's blinking on the right eye that brings good, and the other side otherwise.