People who irritate us the most sometimes exhibit the same qualities we possess ourselves. Perhaps it is the perfect opportunity for self-exploration and understanding ourselves on a deeper level in order to explore options of behavior modification and change those irritating traits.
However, we must be willing to change and become brutally honest with ourselves as it relates to bad behavior.
On the other hand, enhancing those positive behaviors we possess can influence another person to imitate the behavior . . . and it works the other way around. Allow others in your life to influence you to be the best person you can be.