Using email, we investigated intra- and inter-personal variables that may influence self-presentational behavior of those high in narcissism. Participants rated themselves in domains requiring either external validation (e.g., attractiveness) or internal validation (e.g., morality), when either accountable or non-accountable to an evaluative audience. When degree of external self-worth contingency [Crocker, J., Luhtanen, R. K., Cooper, M. L., & Bouvrette, S. (2003). Contingencies of self-worth in college students: Theory and measurement. Journal of Personality and Social Psychology, 85, 894-908.] was high, those high in narcissism presented themselves in a self-enhancing manner in external domains, even when accountable, whereas those low in narcissism were more modest when accountable. Those high in narcissism may be chronically vigilant for self-enhancement opportunities, especially in external domains where their self-worth is contingent, but may be insensitive to social constraints and norms in their efforts to construct grandiose identities. (c) 2008 Elsevier Inc. All rights reserved.