A method of dynamically scoring implicit interactions can include receiving, by an interaction analysis server from an imaging system, a plurality of images of an environment captured in a period of time corresponding to display of a presentation, retrieving, by the interaction analysis server, content information corresponding to content of the presentation, and identifying, by a presence detector of the interaction analysis server, that a face appears in at least one image of the plurality of images. The method can further include matching, by a facial recognition system of the interaction analysis server, the face with a user identifier, retrieving, by a client device information retriever, client device information associated with the user identifier and corresponding to the period of time, and calculating, by a client device interaction score calculator, a client device interaction score based on one or more correspondences between the client device information and the content information.