Some of us may feel that we've done well just to have finished another year with some semblance of sanity or equilibrium. Yet, our heavenly Father has called us to be sensitive to others, even in the midst of personal turmoil and uncertainty. The context of this verse is Christ's instruction that we should love and bless those who treat us badly. His point is that if our Father sends his sun and rain upon all people without discrimination, that we should also bless all people without discrimination. This includes our coworkers.
Prayer is a good place to start.
Just as the sun and rain of our Father nourishes our planet, so our prayers can nourish the lives of our coworkers. As women and men whom have been called by God to a corporate priesthood, prayer for others is an integral part of our calling. Consider the fact that it is possible that you might be the only person who ever prays for a coworker, and that if you don't pray for her, then nobody will. I have some friends who use an organizational chart as a prayer tool. I mentally walk through my firm's offices and stop at each desk and pray for the individual.