If you manage someone who’s emotionally volatile and high strung, pay attention to how your personality reacts to theirs. You don’t want to become more impulsive or emotional in their presence. Strive to remain calm when interacting with them. Breathe evenly, remain physically still (no foot shaking or arm waving) and maintain an outward expression of neutrality. Even if you’re anxious on the inside, control what others can see. You don’t want to lose your composure just because you’re dealing with someone who irritates you.