
Truth is so precious that she should always be attended by bodyguard of lies- Winston Churchill
The ability to blend into the environment is one of the most terrifying forms of deception. Preventing your enemies from seeing you until it is too late are a devastating way to control their perceptions.
It is always good to be able to blend into social landscape, to avoid calling attention to yourself unless you chose to do. If you are preparing an attack of some sort and begin by blending into the environment showing no sign of activity, your attack will seem to come out of nowhere, doubling its power.
Human beings naturally tend to think in terms of patterns. They like to see events conforming to their expectations by fitting into a pattern, whatever their actual content, comfort us suggesting that the chaos of life is predictable. This mental habit offers excellent ground for deception deliberately creating some pattern to make your enemies believe that your next action will follow true to form. Having lulled them into complacency, you have now room to work against their expectations, break the pattern and take them by surprise.
Make everything so ambiguous and uncertain, spread so much fog that even if you are suspected of deceit, it does not matter--the truth cannot be unraveled from the lies, and all their suspicion gives them is torment. They will only waste valuable time and resources.