Based on the data of a research project with the same title which aims at bringing together local and immigrant secondary and high school students who do not have strong friendship relations and socially distant due to the prejudices against each other. For that reason, the “language learning and teaching activities” are used as research tools in the study to achieve the goal of the project. In this regard, it is presumed in the study that local and immigrant students, teaching each other in their mother tongue will overcome the prejudices through spending time together, which will result in friendship. Students’ spending time with each other and their friendship intimacy-levels (before, during, and after the language activities), were tried to be understood by using “informal conversation interview” and “observation” techniques in the sense of comprehensive and exploratory methodology. As a conclusion, a powerful interaction has been observed. Another conclusion that we reached is that there are important differences among female and male students, immigrant and Turkish students, high school and secondary school students. In this context, the girls, immigrant students, and high school students have shown more progress. Despite this difference, it can also be concluded that progress is observed in all groups. Therefore, the study concludes that socialization process among peers and language-based activities are important in achieving a full integration among different groups.