This presentation aims to investigate the semiotic workings of human multimodal communication in context, where body movements, use of language, and metacommunicative knowledge play pivotal roles. To delve into their details, I apply some of the perspectives relevant to communicology, including “body as sign” (Catt), shifters (Jakobson), relevance (Schütz), and frame (Bateson), as well as the Peircean triadic semiosis of “object-sign-interpretant”. Drawing on the perspectives above, the presentation analyzes a part of interaction at the National Museum of Emerging Science and Innovation in Tokyo, Japan. The part in point is only five-second long, but its semiotic phenomenological affluence should never be dismissed. Right before this five-second scene, a science communicator (SC) was explaining ways to study the universe to two visitors (V) at one particular spot. Then, V start walking toward the exhibited model of a telescope without SC’s explicit directions. I articulate that such comportment is possible based on a series of the following semiotic phenomenological experiences; (1) SC’s different body movements, such as pointing, taking a step, and turning the head, point to the relevant physical communicative environments, (2) SC’s indexical use of language evokes both spatial and social contexts beyond such physical environments, (3) presupposed metacommunicative knowledge (frame) mediates between (1) and (2) thereby creating a “push” for a certain action. A communicological theme (re-)emphasized in the end is the problem of inference and Gestalt anchored onto contextualized “practical bearings”, which seems to lie at the heart of thinking in terms of pragmati(ci)sm and phenomenology.