Where can I meet people my age in Houston.

I am 23 years old and have been living in Houston for 4 months. I'm originally from San Diego and Tijuana. I came here through a medical school program from Mexico and I work in numerous clinics here in Houston. I haven't really struggled to make friends since we come here in a program but I only hangout with people who are not locals. I want to mingle more with locals but I haven't found how to. I live by rice university and the medical center. What places could I go to or what could I do to mingle more with locals?