This episode is a review of a research paper by Angus James McLachlan of the Federation University, Australia. The basis of the research explored in today's episode was to examine how laughter is used by people as a marker in conversation to show that the meaning of the words aren’t meant to be serious in the context that they’re spoken (when accompanied by laughter) and also how the person doing the laughing is essentially trying to be friendly with the people they are chatting and laughing with.