Underlying the recent focus on embodied and interactive aspects of social understanding are several intuitions about what roles the body, interaction processes, and interpersonal experience play. In this paper, we introduce a systematic, hands-on method for investigating the experience of interacting and its role in intersubjectivity. Special about this method is that it starts from the idea that researchers of social understanding are themselves one of the best tools for their own investigations. The method provides ways for researchers to calibrate and to trust themselves as sophisticated instruments to help generate novel insights into human interactive experience. We present the basics of the method, and two empirical studies. The first is a video-study on autism, which shows greater refinement in the way people with autism embody their social interactions than previously thought. The second is a study of thinking in live interactions, which provides insight into the common feeling that too much thinking can hamper interaction, and into how this kind of interactional awkwardness might be unblocked.

Key words: experience of interacting, first-person methods, second-person methods, embodied methodology, embodiment, enaction, researcher as instrument, practical phenomenology, autism interacting and thinking, participatory sense-making.

Context: In earlier joint work with Varela and Vermersch, we began the elaboration of a methodological and epistemological framework for a practical experiential phenomenology. Problem: I here wish to update and further develop that earlier work. Method: I present the framework of a practical, as distinct from a conceptual-theoretical, phenomenology. I update that framework, arguing for a shift in emphasis from consciousness to vigilant attention. I offer a still preliminary investigation of the important phenomenon of surprise. I link these results with ongoing scientific research conducted by myself and others. Results: Attention-as-vigilance is a key operator of experience. Attention has an antinomic dynamic with surprise. Implications: Attention and surprise are key participants in the generative process of the experience of novelty. Elaboration of this thesis enables the further development of practical, first-person methodologies. Constructivist content: This paper outlines certain key features of first-person, lived experience, and elaborates a method for linking these results directly to ongoing scientific research.

Key words: Practical phenomenology, attention, vigilance, surprise, experience, novelty