I have a couple possibilities:
General Attitude: Things will be better if I go to another place
Description: The migration instinct is the desire to solve one's problems or improve one's conditions or chances by traveling to another location. It's the instinct that leads people to drop everything and travel to another country in the hopes that they will have better opportunities there. This may manifest in daily life as restlessness, or an urge to go places seeking excitement. Someone with a strong migration instinct may feel drawn to exploration, which could include anything from going for a stroll through the park to traveling to a foreign country. These are people who can't bear to sit at home all day--they feel a constant tugging to go out somewhere.
Unhealthy: May feel restless, act on an urge to go someplace for no reason, wander aimlessly with no planned destination, place all one's hopes on the belief that going somewhere new will solve all one's problems
Evidence in Nature: Migration, immigration, exploration
General Attitude: I can solve my problems on my own by thinking about them
Description: This is the most introverted of all the instincts. People with a strong introspection instinct spend a lot of time reflecting and thinking about issues. They feel that if they think about their problems enough, a solution will come to them. This attitude can cause them to resist help or change even when they clearly need it, stubbornly insisting on solving it on their own. They tend to trust their own judgement and feelings, looking inside themselves for answers. They may do this because they believe that the way to self-improvement and happiness is to attain a better understanding of themselves, or they may simply believe that their minds are key to greater knowledge and understanding of the world. The introspection instinct is responsible for fantasies and daydreams, which may become a way of exercising their creativity.
Unhealthy: Too much reflection leads to brooding and pessimism. May dwell on past mistakes or overindulge in fantasies and daydreams. They may focus too much on their problems or negative feelings, causing them to feel anxious or depressed. Low self-esteem is likely. May become reclusive.
Evidence in Nature: This cannot be observed, since the process is entirely internal. However, what human does not introspect? Clearly this is not learned behavior, but some inborn trait or instinct.
Based on this, I would be In/Mi/Sp/So/Sx.