OBJECTIVES: Evolutionary psychologists emphasize that self-worth and well-being are largely determined by the degree to which individuals garner and hold the interest of others. Personal attributes, such as physical attractiveness, are viewed as resources which serve as signals to others to pay attention to us. DESIGN AND METHOD: This study examined (a) the degree to which participant appraisals (N = 75) of self-worth were related to appraisals of how interested others were in them; and (b) the extent to which interest ratings account for the relation among self-worth, dominance and attractiveness ratings. RESULTS: The main findings of the present study showed (a) that the degree to which individuals derive self-worth from various attributes was strongly related to the degree to which individuals believed others were interested in them; and (b) that the amount of interest one believes others show in them mediated the relation between physical attractiveness and social self-worth. CONCLUSION: Results have a number of implications concerning the nature of self-worth and the utility of psychological theories that emphasize evolutionary principles.