Resolving the inability to produce a word through a gestural realization is often a compensatory strategy used with aphasic patients. However, context and interpersonal knowledge between participants are also essential factors for finding or guessing the right word or the right gesture. In the "Interactions between Aphasic people & Caregivers" project, we explore video-recorded interactions between a single patient with aphasia and her caregivers (family or speech therapists). Video recorded data involving this patient in interaction with different caregivers allows us to more accurately analyze the interactional compensatory strategies used by caregivers and patients according to their communicative habits. We will be particularly interested in an interactional situation between a speech therapist (Anna) with her aphasic patient (Aïcha) during a single reeducation session. We will analyze the place of gesture in this conversation. We will show how the interactional skills of the two speakers are constantly called into question, especially when the patient, is engaged in an activity of "gestural repetitions." We will see that to resolve the lack of a particular word, the patient can perform gestural representations. Through the analysis of three excerpts, we reveal that the gestural retraining of the aphasic patient is as important as her/his speech reeducation and we will show to what extent the speech therapy is essential in relearning to communicate. Our work contributes to existing linguistic and clinical research in that it focuses not only on the patient, but also on the caregiver (the speech therapist).