Dreaming about classmates mean your desires to seeing them more often than in a classroom setting, it means an opportunity for socialization outside of a work or school setting. Or maybe they are now your old friends who are out of touch, and you are happy reestablishing a friendship with them again.
Some of us have had the experience of having a dream in which we see a classmate at our favorite spots and hangouts. Perhaps we feel an attraction, or we just find them amusing. We might even go so far as to want to be around them. In a word, we like them more than just classmates.