This paper explores the movement behavior of participants in a pedestrian crowd experiment. The material consists of four experimental runs (N=351) which have been videotaped from the top-view perspective. In the experiments, large groups of around 80-90 were asked to imagine being on the way to a concert and to walk towards and enter a gate without any predefinition on how to behave except that motivation (low/high) was varied via the instruction. Participants therefore entered a large space in front of a small gate, waited, and then entered the concert hall one by one, through the gate. Through a qualitative, iterative process of systematic observation a complete list of behavioral repertoires was collected. They are either performed by individuals, small interactive groups, or large action groups. The observational dataset is enriched with pedestrian trajectory data, used to create heatmaps for density and speed, as well as time-distance plots. The analysis reveals that participants show many, sometimes rapid, changes both between movement repertoires and between the social unit they are engaged in. The crowd therefore not only engages in a heterogeneous but also highly dynamic way.