The effect of explicit instructions to " be creative" refers to the phenomenon that instructing people to " be creative" before a creative task can lead to more creative responses. To date, the be-creative effect has been in-terpreted from the views of maximal performance, goal-setting and controlled-attention. Several factors have been found to be associated with the occurrence of this effect, including guidance of instructions, types of the creative tasks, as well as the cultural and individual characteristics of the participants. The effect of explicit instructions has important implications for creativity teaching. During the teaching for creativity, instructors should set explicit creative goals for the students, elaborate instructions for different tasks, and adapt teaching to the individuals with different cultural and intellectual characteristics.