We wear masks because we find our natural state to be weaker and discomforting than what we would prefer to otherwise portray... What we however forget is the fact that all masks ultimately crack up and develop leaks. The true thought, the true feelings, the true view unconsciously will profusely leak out of these cracks.
Learn to be a deep observer of behaviours for if you do, you will not only protect yourself from becoming a victim but furthermore, take adoptive / defensive measures to contain the damage.