Many supervisors are sparse with praise and make their employees sweat with it. Certain signs reveal what your boss really thinks of your work.
A boss who sees you as a valuable employee will help you attend education and training programs. It's a good sign if your boss asks questions about your private life and asks, for example, what you did at the weekend or whether you have overcome your cold. It is even better if the supervisor appreciates your performance and is open to discussion for an increase or promotion.