Daria: Language is the main problem for foreign students, they can worry about troubles with communication.
Ksenia: When foreign students don’t know Russian language and don’t integrate into Russian culture, they can be afraid of some problems. But people there are really responsive and kind. In my group in university there were foreign students who had difficulties with Russian. Other students tried to help them a lot. Also, I have heard that there are some special courses of Russian in HSE. I think, this can really help with adaptation.
Anastasia: They are afraid that other people misunderstand them. Also, differences in culture can be a problem. But it is not unreal to overcome these obstacles.