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The Builder
Calm, affable, and people oriented, the Builder's personality is influenced by the serotonin system. Social situations are often fun and relaxing for Builders; they like to network. Because duty and loyalty are their strong suits, they often acquire a devoted pack of peers and pals. And they're true guardians when it comes to family and friends.

Builders are cautious—but not fearful. They think concretely. They have a clear memory of yesterday's mistakes, so they prepare. These people are not impulsive with their money, their actions, or their feelings. Security is important to them. Structure and order are, too. Taking particular pride in upholding social norms, many are traditional, and they often have a strong moral streak. Builders don't get bored easily, which enables them to be methodical, hardworking, and dependable. Thanks to all these solid qualities, they tend to be regarded as pillars of the community.

But Builders can go overboard. In their quest to do things the "proper way," they can be intolerant of other ways. Indeed, they can be stubborn. And with their need for order, rules, and schedules, they can stifle spontaneity. Their stoicism can turn into pessimism, their conformity into rigidity, and their concrete thinking sometimes makes them too literal. Normally, however, Builders are community minded, industrious, and popular with colleagues and companions.