This paper purposely to understand the relationship between reference materials and form the embodiment process illustrated in the design drawing sketch. To review the respondent’s design thinking characteristic and to surmise the scenario of the product development issue, a design protocol analysis put in place as a core method. Respondent behaviour throughout the design activities was recorded and analyzed through interaction design embodiment process. Analysing design activities and drawing sketch has produced some pattern which states the meaning of average design element, selected reference material, interaction behaviour, and the design process in a control situation.