Mood Ambiance is a place related interaction design concept developed in the "Social Mass Media" course at Malmö University. Besides developing a concept to solve a place related problem, the focus was lying on extensive fieldwork and several rounds of iterative ideation phases, using a variety of methods. The final concept our team came up with is addressing the problem of boredom caused by waiting time at train stations. It makes use of the barely used media screens you can find everywhere in the station. Through the Mood Ambiance App Users can help shape these surfaces. They can upload a picture to a daily theme that will be displayed on the screens as collage from all uploaded pictures. To connect the waiting poeple abit more and make them get in touch with each other, if wanted, the App gives the opportunity to influence the ambient light conditions and background music of whole areas. For this purpose light intensity, preferred color and music style can be selected. based on the highest percentage of settings people in an area have selected the ambient conditions will be changed.