I would start by attempting to communicate with them, so that we can learn how to be on the same page; showing I am an ally and not an enemy. Generally the individual who is being difficult or hard to get along with are having their own troubles and it's not because of the employee. If it is a personality conflict then taking a quiz like True Colors would help all parties involved communicate more effectively with each other. Not only will it make people think before directing, but also enable bonding in the workplace.