This study aimed to get a deeper understanding of how people interact within groups on social media that originally stems from a hashtag-activistic campaign. The study was conducted on an empirically selected group using the hashtag #Trashtag on Facebook. #Trashtag is a hashtag used when picking up garbage in order to document pictures of ones work on social media. This study attempts to find out how the interaction within this group works and what makes people engage in the matter.  This study is conducted through content- and text analysis as well as ethnographic observation online. The observation method is also the means in which the data for this study is collected. The following three theories is used as the theoretical framework for this study, participatory culture, making is connecting and uses and gratification alongside with an hermeneutic perspective. The main results for this study was found by observing 45 publications from one Facebook group with the mission to clean up a beach in Ireland.  The observation showed that publications posted in the group varied between subjects concerning the constant litter and contamination on the beach too publications designed to inform about possible or direct causes of the problem. The main result of this study was an observation that a recurring way of motivating the group members to participate in the Facebook group was through emotionally charged content designed to provoke some kind of reaction. The engagement however is driven by positiveness and unconditional encouragement between the participants, negative vibes are not answered upon. Furthermore the study found that the urge to participate and contribute gives people a satisfactory feeling of achievement. Therefore activist groups like the one being researched in this study are important not just for the environment itself but also for the individual. The presented material in this study could be used for further research within this subject.