Make room for events at the beginning of the academic year. This is the best way to get to know other students, TKO-äly and university culture.
Download Telegram and join Keskustelukanavat (in Finnish, but discussion in English is welcome). You can find most fellow CS students here. It's also a great way to keep up to date & ask for help!
Join the fresher group in Telegram. You can find the invitation link in the e-mail TKO-äly sent you or you can ask any of the Tuutorit to add you. If you don't join any other channels, join this one!