by heart - using only your memory, learn the ropes - learn how to do a job or task properly, school of hard knocks - learning through difficult experiences rather than formal education, put on your thinking cap - think seriously about something or try to solve a problem, stay ahead of the curve - keep up with new developments and continuously learn to remain competitive or knowledgeable, a quick study - someone who learns something very fast, pick somebody's brain - ask someone questions to learn more about a subject they know better than you,

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