The Boston-Theory about Now-Moments, Moments-of-Meeting and “present moments” up-to-date has not founded this impressive theory in a precise transcript. What are these moments in detail? How to recognize them? There are strong affinities between the microanalytic work of the Boston-Group and social-scientific conversation analysis, but there are deviations, too. In a first part, I will sound out affinities and differences intending to become able to more precisely determine what these moments are and how they can be detected. In a second paper (this volume), I will turn to an interview with a holocaust-survivor with the methodological goal to find more methodological precise determinations of what now-moments are.