Project ECHO is a CDC-funded study to adapt and test the efficacy of Personalized Cognitive Counseling, a brief self-justification counseling intervention, on sexual risk and substance use among episodic substance-using HIV-negative men who have sex with men. Individuals are randomized to one of two study arms to receive; (1) HIV rapid testing with adapted Personalized Cognitive Counseling or (2) HIV rapid testing with information only. We will evaluate whether the provision of Personalized Cognitive Counseling reduces risk behavior and sexually transmitted infections in episodic substance-using HIV-negative men who have sex with men.