In this article, I discuss two approaches to the phenomenon of gesture, constituted by the existential dimension of embodiment, intersubjectivity, affectivity, and language: while Martin Heidegger states that human bodily movement as a whole should be understood as gesture in contrast to the spatial movement of things, Vilém Flusser integrates under this notion a multitude of human practices and activities that common sense hesitates to call gestures. The dilemma of the phenomenology of gesture consists in this tension between the plural concreteness of gestural appearances and the irrepressible temptation to identify a unitary layer that would allow them to hold together.