This research expected to innovation designs can develop by more detail user-experience, that also reduce users unfamiliar and depressed; therefore, we investigated that people cognitive process on operated daily commodities, and we planned a tool to analyze users the area of contact and frequency. In experiment, we selected three objects whose size and shape are similar but haven’t limited way of operation. After that, we excluded feature of shape and make them consistent. We studied 30 participants response to operation and affordance, and analysis that by qualitative and quantitative. The result showed the participants have consistent posture of grasp, area of contact and way of operation in the same experimental situation; in addition, even the grip are the same, but following different functional parts, users still response a corresponding way of operation. So we suggest that shape only be as one of design factors on simple design style, and not the main factor. Designer should find other design techniques to enhance the user’s cognitive operation.