Abhishek_Nagaraja
The best way to meet people in any university is through organizations. Visit - MavOrgs It has all the details of the organizations and the events which are organized by them.
If you want to meet people outside the university, check out events in Linkedin or meetup. Not many events will be in Arlington, but Fort worth and Dallas will have many events.
In Arlington, bars and community centers would be a good start.