 What do the agents A and B have to intend for their intention to go for a walk to be collective? A first approach consists in saying that the relevant intentions of A and B do not refer to their own individual walks, but to their joint walk. Instead of each intending to go for a walk, A and B would each intend the joint walk. This move is crucial to Michael Bratman’s approach to the analysis of what he terms ‘shared cooperative activity’ (cf. Bratman 1999, chaps. 5–8, 2006, and 2014). It is based on the view that action intentions do not just come in the form “I intend to X,” as when an agent intends to perform some action. On Bratman’s account, intentions can also take the form “I intend that we J” (cf. Bratman 1999, chap. 8), where J refers to a joint activity in which the intending agent participates. This represents the participating agents as not just intending their respective contributions, but as intending the joint activity; in the case at hand, A and B are said to intend that they go for a walk together. Although the focus at this point should be on that core element, it is expedient to cite one version of the entire analysis.