Say you had a great experience at a coffee shop- you post [satisfied] towards [Velo Rouge Cafe]. If enough people do this, anyone who wants a quick snapshot of what people have experienced in Velo Rouge might just search for them on Moodstir. If there are a lot of [satisfied] emotions posted, or a lot of [frustrated] ones, it imply certain things about the cafe. Different than a Yelp review site, in that it takes the aggregate feelings of all users, rather than a simple X/5 star system, which is a more limited glimpse into peoples' experiences.