Cautious: The extremely cautious person is not one likely to take risks, preferring safe, proven, time-tested solutions and methods. They seek evidence and will be doubtful or skeptical of anything that is unproven. The cautious person will be comfortable doing things that other people are doing or have done.
Risk Taker: The risk taker is willing to accept new ideas and concepts which have not necessarily been proven, but seem to make sense. They will often take a chance on something that sparks some emotion that gives them a sense that it will work. They have a sense of adventure and a willingness to chart new paths.