As for me, I look at whichever factors appear to be relevant (meaning something stands out and appears to be type related), including the overall concept being expressed in type descriptions, dichotomy descriptions, duality descriptions, function descriptions, and quadra descriptions. However, it's important to consider that different types do the same exact things for different reasons. For this reason, the primary characteristics/concepts which I use to type people are quadra values and temperaments.
To better explain how I view types and quadra values, I'll quote something I said in another thread:
Any reference I make to type descriptions, dichotomy descriptions, duality descriptions, function descriptions, and quadra descriptions solely for the purposes of using that medium to communicate an overall concept, and I only intend for people to reference the overall concept of those descriptions in regards to what I am saying. (If one attempts to apply specific examples of type behavior, it is very easy to take what's written in descriptions out of context.)Originally Posted by Joy