Recruiters  Inclusion Criteria:  ages 15-24 years assigned male gender at birth self-defined gender identity of either MSM or TGW any one of the following: living with HIV, using HIV pre-exposure prophylaxis, receiving intermittent HIV testing for ongoing HIV risk good rapport with King Chulalongkorn Memorial Hospital (KCMH) Adolescent Health Clinic, knowledgable on HIV and comfortable discussing HIV with peers  Network Members  Inclusion Criteria:  ages 15-24 years assigned male gender at birth self-defined gender identity of either MSM or TGW self-reported oral and/or anal sex with a man in the past 12 months and at risk of HIV infection (multiple sex partners in the preceding 6 months and/or inconsistent condom use) no history of HIV testing or last HIV test > 3 months prior to study entry  Exclusion Criteria:  Known to be living with HIV