Answer:
There is simple thinking, more surface-level kind of stuff like, "that person likes to investigate things." and then complex thinking, which is taking a simple thought a step further by breaking down a problem and looking for details. its the difference between a quick doodle on a piece of notebook paper and a big colorful painting.
So instead of just thinking, "In order to turn on a computer, you need to click the power button," you take a step further to consider what wires and circuits and hardware and electricity, and make a connection as to how each part of the computer makes it turn on, seeing past the button and into the computer system.