1. Realistic People: people who like athletics, nature, materials, plants, animals. Simply put these are the people who like prefer activities that involve something tangible.
2. Social People: people who prefer helping people, informing, enlighten, train, development. These are people who are hell bent on changing views, or simply enjoy serving others.
3. Investigative People: people who observe, learn, investigate, analyze. The people who are always curious about everything.