I've brought my girlfriend to the university library. Whilst I have finished my degree, she has a thesis to do. It's interesting helping her, as it is totally unrelated to my area of expertise; she is studying the political economy, and as she is living in Australia, I am helping her to adapt and study the economy here, from the GFC. I am apolitical, so it is easy for me to have a neutral outlook on the actions taken, but I do still have some knowledge that I am imparting on her, as she does her thesis. It's challenging and rewarding.