“Under promise -Over deliver” is an age old and very simple formula that really works and will help you achieve personal success. I often see business people who, in an effort to please the boss, promise to deliver more than can likely be achieved. The over promising may feel good at the time but in the long run is a path that can lead to substantial disappointment.
Whatever your style do everything you can to set and be held accountable for realistic achievable goals. Don’t allow yourself to be pushed into promising what cannot be confidently delivered. If you are sure you can achieve “X,” work to set the goal at “X minus a small percentage.”
Remember, the boss loves the ones who exceed expectations.