‘A session of facial exercise’ was how my friends and I referred to a lecture of Economics. That’s because we would yawn and yawn during the entire lecture. And no, my Economics professor was not to be blamed. She did all that she could; she taught with gusto and interspersed the lecture with anecdotes. Our yawns, however, simply refused to die. The only time my professor could reign in the yawns was when she used coloured chalks and drew graphs to explain economic concepts. Clearly, visuals — graphs in this case — proved to be a great way of bringing alive a theory-laden subject. Also, we acquired a greater understanding of the concepts when the explanation was paired with visual aids.