This paper aims to contribute to the existing literature about social influence on products purchase intention. Specifically, it focuses on social influence among young adults’ purchase intention for luxury products, through investigation about Macau young adults consumption culture. Three types of social influence (informational influence, utilitarian influence, and value-expressive influence) are examined in this study. In terms of product conspicuousness, two types of luxury products can be identified based on the degree to which products usage is performed in public versus private. Hypotheses include that informational influence, utilitarian influence, and value-expressive influence will be significantly and positively related to consumer purchase intention for luxury products, both publicly and privately consumed. A convenient sample of 120 Macau young adults aged 18 to 24 participated in this study. The result of Regression and Analysis of Variance indicated that consumers have been affected by different types of social influence when they purchase different types of luxury products. Value-expressive influence is significantly and positively related to purchase intention for public products. Moreover, both informational influence and value-expressive influence are significantly and positively related to purchase intention for private luxury products. However, the effects of utilitarian influence are insignificant to both public and private luxury products, which are contrary to the hypotheses specified in this study and surprising findings about contemporary Chinese culture. Additionally, female has higher intention to buy luxury products. Based on the results of this study, marketing implications and managerial insights in the luxury retail market are recommended accordingly. Future research can provide a more comprehensive perspective of social influence than the exploratory one offered in the present study.