In this paper, we propose to compare expressive and neutral oral renditions of a children's tale in french by examining the segmentations performed by twelve high level french readers. We used a software dedicated to this kind of analysis (Analor) which takes into account different parameters (pause, pitch gesture, pitch jump) and their relative strength to determine pertinent prosodic units (phrases). The extraction of these phrases and their features enables us to observe the influence of both the type of oralisation (expressive or neutral) and punctuation signs on the organization of speech flow. Results show that prosodic phrases in the expressive readings are more numerous (specially at comma locations), that their boundaries are more clearly demarcated, and that they have more varied contours than those in neutral readings.