Before the debate, U of A political science professor Patrick Stewart gave a keynote speech to some students.
He described ways various types of humor can be detected during debates.
Professor Stewart has actually written a book on this topic.
He showed a variety of clips from past debates - using them as examples Stewart believes this can add insight for viewers.
We spoke with students afterward, asking them if something like this changed the way they watched tonight's debate.
Click above to hear what they said.