Deliberate practice--meaning drill-like practice under the direction of a coach--is key to developing expertise in sports and music. But working professionals and businesspeople typically have no time for practice. We propose deliberate performance as a type of practice that professionals and businesspeople can pursue while they work as a way to accelerate their progression to becoming experts. Four deliberate performance exercises are described: estimation, experimentation, extrapolation, and explanation. (Contains 1 exhibit.)