Laughter is a forceful expression of affective intensity. It has a potency that strikes the body directly, passing transformatively through the thinkingflesh. Laughter also carries a socially contagious intensity, capable of opening new relational spaces through the transindividual circulation of affects through a charged atmosphere. In this paper we map the circulation of affects through a series of stand-up comedy workshops with undergraduate acting students in Manchester, UK. Building on recent research on laughter and affect (Sharpe, Dewsbury, & Hines, 2014;Willett & Willett, 2014;Wyatt, 2019), we assemble a multi-dimensional theoretical model that enables us to follow the movement of affect across three vectors: intensity (high to low), valence (positive to negative), and temporality (past to future). By spatialising this theoretical model within the three-dimensional space of the drama studio, we show how students can use their bodies to actively perform palpable fluctuations in affectivity as they develop stand-up comedy material through a series of provocative activities. We then compose complex mappings of affective intensity as it circulates through a series of short performances, using new empirical methods to combine ethnographic accounts with data from electro-dermal activity (EDA) sensors worn by the students de Freitas & Rousell, 2018).In moving beyond reductive accounts of laughter as a function of stimulusresponse, we assemble the concept of "fielding hilarity" to better account for the atmospheric circulation of affects through comedic learning processes and performances. We suggest that learning to perform comedy is not just about making people laugh, but about fielding a charged atmosphere through which hilarity ensues.