If in a dream you see the schoolmate, then in real life you will have a problem which you will be able to solve only with assistance of friends. If dreamed you that you meet the former schoolmate, but he passes by you, then in reality you find too much time for work, forgetting about the duties before the family. The dream in which you came to a class reunion, means that you do not accept communication with the people surrounding you and you missed sincere communication.
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.