Integration requires a sustained effort over a period of weeks or months. It requires the establishment of an ongoing process and periodic reinforcement mechanism to sustain the excitement and engagement of the individual. Ongoing maintenance of the culture is primarily accomplished through three mechanisms. For example, if service is a value the college wants to promote, then the college needs to promote and sponsor as many service oriented programs as possible, either directly or through existing community service organization. Third, celebration of people that live the values through recognition and awards.
Community is built through shared experiences and interests.
So the question becomes, what are creative ways to build shared experiences. Find ways to incorporate one or more of these together into activities. Have the college act as a bridge between community service needs and volunteers by acting as a clearinghouse for both. Fun activities and team building should involve family and church as much as possible. See the answer above.