We use conversation analytic methods to demonstrate that participants routinely treat noticings as actionable phenomena---not with regard only to current talk---but also to the larger organization of activity that the co-participants orient to as currently in operation. We argue that participants in these interactions deploy noticings as a means for invoking one activity as taking priority over another, and for commenting on other participants' current conduct. These practices provide a means for co-participants to negotiate or resist what activity they subsequently treat as currently underway. Noticings transform otherwise innocuous utterances, events, or other as-yet-unnoticed resources into observable, reportable, and actionable phenomena by embedding 'what-we-are-doing-now' within a larger activity. This procedure generates "activity" and/or "settings" as inferentially rich environments for the participants in conducting their situated work (Sacks, 1995, p. 516).