In recent years, a movement to protect a special, highly vulnerable category of unauthorized immigrants called unaccompanied minors began. Unaccompanied minors are children younger than eighteen years, present in the United States without documentation, parents, or other legal guardians. Prior to 2003, these minors were held in jails and denied many rights. Due to the work of human rights organizations, the government began to place these minors in residential shelters, where their lives change substantially. They are exposed to many different perspectives, cultures, opportunities and changes while living at these shelters, including following a structured schedule, attending school and going on outings. An important question is: How are these youth adapting to these new living arrangements? Much literature has focused on undocumented adults and youth with families, but there has been a dearth of research on undocumented minors who migrate by themselves. This research focuses on a residential shelter and the interactions of unaccompanied minors who reside there. Through interviews and participant observation, I examined the shelter’s role in the lives of these youth to determine whether the interactions they had with residential staff, the environment of the shelter, and other youth induced any behavioral changes during their stay. My findings suggest that the longer the youth stayed at the shelter, the more their future aspirations, perspectives and behavior changed. Some became more social, confident, comfortable, mischievous, angry, depressed or curious. Factors that contributed to behavioral change included the age of the individual, how he was treated and viewed within the group, how he viewed the shelter, events that affected his family, whether he was going to be deported, and his desire to continue living in the U.S. Research of this nature is important for understanding how these institutions are altering the lives of unaccompanied minors.