So I had a job interview today

It was at a lab on campus that works on (and dyno tests) variable valve timing for diesel engines. I would probably just be doing boring crap like paperwork. The awkward thing is, I'm not sure if it is a paid position or not... I need the money to fund my cars. How do I ask if it is paid without being awkward?

This wasn't an advertised position. It was more of "a friend of a friend knows this prof. and he might be looking for help this summer" kind of deal.