The Heart Center consists of those people who move towards others. They engage relationship.
Picture yourself going to a party. When you get to the door what do you do? If you walk right in and begin talking and greeting others then you might belong in the Heart center. The Heart Center is emotion based. These types are image conscious. They are concerned with feelings and relationships. They are often busy doing.
The Head Center types initially move away or withdraw from relationship.
At a party those in the Head Center stand at the door and look to see who is present and what is happening. These people are Head based and like to have a good idea of what to expect before entering a new situation. They cautiously approach others. The Head center is a cognitive center. These people like to think but may be slow to act. The plan but may not implement.
The Gut Center types move in and against. They are direct and straight forward. They can be confrontational.
At a party they would go right in and engage in hearty, jovial, back-slapping greetings that may put some people off. Or, they might offer the host a helpful criticism about how to improve some feature of the party. These types are based in instinctual energy. They tend to act first and later to think and feel in regard to their actions.
If you know your style of approaching others then you can locate your center and narrow the choices for your type. Determine your center then look to those three types to find yourself.