Samgoiri

With a rival or competitor, avoid predictability. It's easy to shoot a bird flying in a straight line, not so easy if they weave back and forth. Don't conform to predictable patterns always doing the same procedures in the same ways at the same times. And likewise, don't always act on either the first or the second impulse, the first or the second thought. Poker players don't play with their cards face up. Even more so, with an enemy watching, frequently change the way you do things.