In this paper, we aim at better understanding users interaction with trackpads and provide recommendations for creating novel or revisiting existing interactions. To achieve this goal, we conducted a three-steps field study targeted at Apple Macbook's multi-touch trackpads. We collected (1) system preferences of 80 users; (2) low-level interaction data of 11 users and (3) finger chord mappings to multi-touch gestures of 9 users. Our results show that users change few default system preferences; that touch contacts on the trackpad are performed on a limited subsurface and are relatively slow; and that the consistency of user finger chords varies depending on the frequency of a gesture and the number of fingers involved.