Skepticism is about using the best available evidence to come to the best available answer. This can be applied to all sorts of fields but is most commonly applied to debunking conspiracy theories, paranormal phenomena and alternative medicine. Skepticism is different from cynicism because it's not just being critical of everything, it is about appraising the evidence and reaching the best conclusions. Good skeptics are able to change their mind on something because new evidence points to a new conclusion. This is what being open-minded really means.
This fact of the day over the next 12 months will introduce you to many of the concepts and principles of scientific reasoning and skepticism.