Despite an increased number of international college students studying at U.S. colleges (U.S. Census Bureau, 2010), research suggests international college students do not interact with non-international college students (Arber, 2008; Hsieh, 2007; Rose-Redwood, 2010, Yin, Huang, & Hare, 2010). Such interaction is essential in developing features of global citizenship, which can then benefit both society and the students themselves (Morais & Ogden, 2010). This mixed method study evaluated Adopt a College Student, a program which sought to develop global citizenship by pairing international college students with non-international college students or local community members. Initial and final interviews and surveys were conducted with twelve international college students, non-international college students, and community members before and after program participation. While quantitative analysis showed a marginal decrease in global citizenship, qualitative analysis suggested non-international college students and community members, not international college students, showed increases in global citizenship in relation to Adopt a College Student. Increases may have been due to utilization of catalysts and suppression of inhibitors for global citizenship. These findings suggested programs like Adopt a College Student may effectively promote features of global citizenship if experiences with the program are significant. Implications for collegiate global citizenship initiatives and future research are also discussed.