How can I tell what kind of personalities are common among students at a university?

You cannot reliably judge students’ personality tendencies from a university’s name alone. Check official information about student life and classes, observe how students interact at an open day or trial class, and ask several current students about studying, extracurricular activities, and socializing. Because students differ by faculty and year, treat reviews and one person’s impression as examples only, and compare several sources before deciding.