Using humour is great for student engagment, but it must be appropriate humour. It has to be used sparingly and at the right time. Eye contact, lots of changes in tone of voice and body movements all interwoven with humour are all great ways to keep students engaged in learning. I use humour whenever possible, it reduces stress and adds to an informal element to the classroom. It’s the “fun” part that we need students to see that we’re having. If we’re not totally engaged and having fun, students won’t be either. Here’s a TED talk about Humour and Education by Trevor Strong.