The moment you feel a bit of irritation by another’s behavior, shift your point of view.  Are you seeing them as a fellow human being?  Shift to awareness that at a deeper level you all arise from one Field of Consciousness.  Does one cell in the body become offended, insulted, annoyed at another or do they cooperate, noting they support one body? If the former, there is a cancer.  If the latter, there is harmony.  Perhaps the other does not realize these truths.  Then it behooves you to simply be the light and model harmony. 

Blessings be upon you.  You are so very loved.