According to one embodiment, an information processing device includes a memory and a hardware processor in communication with the memory. The hardware processor is configured to acquire a first motion data indicating a motion of a first operator, acquire a second motion data indicating a motion of a second operator, compare the first motion data and the second motion data, determine a similarity of the first motion data and the second motion data, and present to the first operator instruction data indicating an improvement point relating to a motion at a time of performing a predetermined operation in accordance with a determination result.