User-centered and participatory innovation practices like Living-Labs are nowadays increasingly been used to integrate, design and improve users' experience (UX) in different fields. These methods that had emerged from web and mobile design fields can contribute to the UX in several other fields. Museum visitors experience is a field that can benefit from them. The purpose of this paper is to contribute to the understanding of the museum visitors' experience through the use of tools from UX and usability studies. Among those techniques, field trials studies can help to better understand users' preferences as experience is tested in a real life setting. Exposition curators and managers can then use these understandings to improve visitors' experience. We present a study held at the Museum Aquarium of Nancy-MAN (France). In this study, were evaluated visitors' preferences among four different information supports in an exhibition module using a protocol that combines eyes tracking and an after use survey. Results show that interactive supports, as tablets and screens, even if not preferred by the majority of participants, once engaged with these supports, they interact longer time. Found evidence let us conclude that supports that are different and uncommon are preferred by most of the participants but, they don't keep them engaged for a long time.